79 results on '"Danino MA"'
Search Results
2. Advocating for a Functional Nomenclature of the Penile Suspensory Ligament System.
- Author
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Danino MA, Dalfen J, and Laurent R
- Subjects
- Humans, Male, Terminology as Topic, Penis anatomy & histology, Ligaments anatomy & histology
- Published
- 2024
- Full Text
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3. Soft tissue vascular tumor-like lesions in adults: imaging and pathological analysis pitfalls per ISSVA classification.
- Author
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Marcelin C, Dubois J, Kokta V, Giroux MF, Danino MA, Mottard S, and Soulez G
- Abstract
Objectives: To compare the magnetic resonance imaging (MRI) and Doppler ultrasound (DUS) findings with the pathological findings of soft tissue vascular tumors (STVTs) according to the 2018 ISSVA (International Society for the Study of Vascular Anomalies) classification to differentiate vascular tumors from vascular malformations., Methods: This retrospective study included patients with STVTs who underwent contrast-enhanced MRI and pathological analysis at our hospital between 2010 and 2020. The presumptive diagnosis based on the on-site imaging and histological analysis was compared with imaging and histological analysis conducted off-site utilizing the ISSVA criteria., Results: This study included 31 patients with 31 vascular tumors located in the head and neck (n = 3), trunk (n = 2), and extremities (n = 26). The off-site pathological analysis confirmed benign vascular tumors in 54.8% of cases (non-involuting congenital hemangioma: 35.5%; epithelioid hemangioma: 13%; pyogenic granuloma: 3%; and spindle cell hemangioma: 3%). Based on the off-site histological analysis, 25.8% were reclassified as having a vascular malformation whereas three had other benign lesions. Only phleboliths were associated with a vascular malformation (p = 0.03). The concordance between off-site MRI and pathological findings was fair (k = 0.3902 (0.0531-0.7274)), whereas that between on-site and off-site pathological analyses was poor (k = -0.0949 (-0.4661 to 0.2763))., Conclusion: Benign vascular tumors have non-specific imaging features on imaging with some overlap with atypical vascular malformations. Therefore, histological analysis is recommended. Imaging and pathological analyses should be performed in accordance with the ISSVA classification to minimize inter-observer discrepancies., Critical Relevance Statement: Imaging features of benign vascular tumors on MRI are non-specific, leading to discrepancies with pathological findings and potential overlap with atypical vascular malformations. Imaging and histological analyses should be performed in accordance with ISSVA guidelines to improve patient management., Key Points: The imaging features of benign vascular tumors are non-specific. Histological analysis is recommended for soft tissue vascular tumors in adults. Analyses of soft tissue vascular tumors should be performed in accordance with ISSVA guidelines., (© 2024. The Author(s).)
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- 2024
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4. Silicone Particles in Capsules Around Breast Implants: An Investigation Into Currently Available Implants in North America.
- Author
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Danino MA, Dziubek M, Dalfen J, Bonapace-Potvin M, Gaboury L, Giot JP, and Laurent R
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- Humans, Silicone Gels adverse effects, Breast surgery, Saline Solution, North America, Breast Implants adverse effects, Breast Implantation adverse effects
- Abstract
Background: Breast implants have always been composed of a silicone elastomer envelope filled with either silicone gel or saline. Breast implant illness (BII) is a set of symptoms that has previously been linked to the leakage of silicone particles from the implants into the body., Objectives: Our research aimed to quantify the number of silicone particles present in the capsules of breast implants available in North America., Methods: Thirty-five periprosthetic capsules were sampled and analyzed, and silicone particles were counted and measured. The capsule surface area was then measured and utilized to calculate particle density and total number of silicone particles., Results: Eighty-five percent of capsules analyzed from silicone gel implants contained silicone, with an average of 62 particles per mm3 of capsular tissue. These implants had approximately 1 million silicone particles per capsule. In contrast, none of the saline implant capsules contained silicone. Capsules from macrotextured tissue expanders contained fewer and larger silicone particles., Conclusions: Silicone gel implants presented silicone particle bleeding into the periprosthetic capsule, totaling on average 1 million silicone particles per capsule. On the other hand, no silicone particle bleeding was observed from saline breast implants. These data suggest that particle bleeding comes from the inner silicone gel, and not from the smooth outer silicone shell. Previous studies have reported the presence of breast implant illness in patients with both silicone- and saline-filled implants. Therefore, our data suggest that silicone migration is not the sole cause of BII., (© The Author(s) 2023. Published by Oxford University Press on behalf of The Aesthetic Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2024
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5. Cosmetic male genital surgery: a narrative review.
- Author
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Danino MA, Trouilloud P, Benkhadra M, Danino A, and Laurent R
- Abstract
Background and Objective: Through the centuries the appearance of the male genitalia has always been an important concern for men, symbolizing virility, potency and sexual contentment. Correction of perceived deficiencies and deformities of the male genitalia can be addressed by aesthetic surgery as well as the enhancement its external aspect. If the social acceptance of cosmetic surgery, particularly of women's breasts, dates from the early 1950s, male intimate cosmetic surgery emerged from the shadows about 10 years ago with a medical community still very suspicious and reproachful. The present paper aims to describe and discuss the current state of the art regarding male intimate cosmetic surgery., Methods: A narrative review of the literature was performed using publications from January 2000 to September 2022. The publications were retrieved from the PubMed database using Medical Subject Headings (MeSH) terms and keywords. The authors' goal is to narrate the aesthetic non-surgical and surgical enhancement procedures of the male apparatus., Key Content and Findings: This narrative review examines the diverse procedures associated with male genitalia aesthetics., Conclusions: Aesthetics of the male genitalia is now an unavoidable and important part of aesthetic surgery worldwide with an increasing demand. Nonsurgical and surgical techniques described in the literature should be reviewed., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://atm.amegroups.com/article/view/10.21037/atm-23-351/coif). The series “The Modern Plastic and Reconstructive Surgeon – Collaborator, Innovator, Leader” was commissioned by the editorial office without any funding or sponsorship. M.A.D. is the consultant for Allergan, Johnson and Johnson, and Establishment labs and participates to the safety board of Knight therapy and Activis med. The authors have no other conflicts of interest to declare., (2024 Annals of Translational Medicine. All rights reserved.)
- Published
- 2024
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6. Autogenous breast reconstruction for total mastectomies: a narrative review.
- Author
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Laurent R, Trifan A, Danino AD, Paek LS, Schoucair R, Pauchot J, Bernier C, Briand E, and Danino MA
- Abstract
Background and Objective: Mastectomies have a significant socio-psychological impact, motivating patients to undergo breast reconstruction. Initially, silicone implants were used to reconstruct the breast. However, breast implants have been the subject of successive crises throughout the years. Indeed, rupture, silicone bleeding, and capsular contracture remain topical. In 2019, the BIOCELL textured breast implants was banned and recalled due to the discovery of the breast implant-associated anaplastic large cell lymphoma (BIA-ALCL). More recently, the breast implant illness has been depicted in the media. To cope with these issues and to respond to some patients' expectations for a natural reconstruction, plastic surgeons have developed autogenous solutions for breast reconstruction. Since Taylor's research on angiosomes, the development of the microsurgery and more recently fat grafting, autogenous breast reconstruction has known a tremendous expansion. Autologous breast reconstruction allows a more natural feeling and texture. This narrative review aims to provide to the readers a comprehensive and updated evidence-based overview of state of the art about autologous breast reconstruction after total mastectomy., Methods: We conducted a narrative review of the literature searching for papers published between January 2010 and December 2022. The MeSH terms with different combinations were used to identify articles for inclusion. After screening article titles and abstracts independently by three authors, 66 papers were included in this review., Key Content and Findings: In this review, the authors describe and discuss the different autogenous techniques in breast reconstruction., Conclusions: Autologous reconstructions provide very satisfactory, durable, and reliable results with relatively low complication rates. Deep inferior epigastric perforator (DIEP) flaps, latissimus dorsi flaps and autologous fat grafting are the most common type of autogenous breast reconstructions., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://atm.amegroups.com/article/view/10.21037/atm-23-1471/coif). The series “The Modern Plastic and Reconstructive Surgeon – Collaborator, Innovator, Leader” was commissioned by the editorial office without any funding or sponsorship. M.A.D. is a consultant for Allergan, Johnson and Johnson, Establishment labsand and receives payment or honoraria for lectures, presentations, speakers bureaus, manuscript writing or educational events from them. M.A.D. participated in the safety board of Knight therapy and Activis med and receives payment for expert testimony from them. The authors have no other conflicts of interest to declare., (2024 Annals of Translational Medicine. All rights reserved.)
- Published
- 2024
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7. Unblinding de Quervain: A systematic review of ultrasound-guided injection of corticosteroids for treatment of stenosing tenosynovitis of the 1st extensor compartment.
- Author
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He KS, He KS, Cheah A, Al-Halabi B, Danino MA, and Efanov JI
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- Humans, Adrenal Cortex Hormones therapeutic use, Steroids, Ultrasonography, Interventional methods, De Quervain Disease diagnostic imaging, De Quervain Disease drug therapy, Tendon Entrapment
- Abstract
A systematic review was conducted on studies reporting steroid injections with ultrasound for de Quervain. From 10 studies included and 379 wrists, 73.9% reported complete resolution of symptoms, 18.2% with partial and 7.9% without resolution. When compared to the landmark-guided technique, ultrasound guidance showed significantly higher rates of symptom resolution (P = 0.0132) and lower pain scores (P < 0.0001). Twenty-nine patients out of 163 who initially showed complete resolution of symptoms reported subsequent recurrence. We conclude that steroid injections guided by ultrasound present high rates of symptomatic relief through precise needle insertion, especially in cases of anatomic variability with subcompartments., (© 2023 The Authors. Journal of Medical Radiation Sciences published by John Wiley & Sons Australia, Ltd on behalf of Australian Society of Medical Imaging and Radiation Therapy and New Zealand Institute of Medical Radiation Technology.)
- Published
- 2023
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8. Revisiting Limitations of Present Models in Microsurgery Training: Presentation of a Novel Model.
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Retchkiman M, Doucet O, Dimitropoulos G, Lussier B, and Danino MA
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- Humans, Microsurgery, Clinical Competence, Internship and Residency, Simulation Training
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- 2023
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9. DIEP flap in breast reconstruction: A morbidity study of bilateral versus unilateral reconstruction.
- Author
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Laurent R, Schoucair R, and Danino MA
- Subjects
- Humans, Mastectomy, Retrospective Studies, Morbidity, Postoperative Complications epidemiology, Postoperative Complications etiology, Epigastric Arteries, Perforator Flap adverse effects, Mammaplasty adverse effects
- Abstract
Background: The Deep Inferior Epigastric Perforator (DIEP) flap is a modality in breast reconstruction of choice. Despite its well-documented benefits and complications, a lack of evidence remains with regards to the risks of performing a bilateral versus a unilateral reconstruction. As such, we sought to compare the rates of adverse outcomes in the perioperative and postoperative periods associated with a unilateral versus a bilateral DIEP flap breast reconstruction., Methods: A retrospective cohort study of 178 consecutive patients undergoing unilateral versus. bilateral deep inferior epigastric perforator flap breast reconstruction was performed at our tertiary care center over a 3-year period. Data on demographics, operative time, intraoperative and postoperative complications, and surgical re-exploration, were extracted for both groups. Statistical analysis was performed on a per-flap basis., Results: A total of 157 unilateral and 42 bilateral deep inferior epigastric perforator flaps were identified. The rate of intra-operative complications was 12.1% for unilateral versus. 4.8% for bilateral flaps (P=0.26). Total post-operative complications rates were 30.6% for unilateral versus 54.7% for bilateral flaps (P=0.003). Surgical re-exploration was performed in 12.7% of unilateral and 11.9% of bilateral cases (P=0.88). The rate of total flap loss was similar between types of reconstruction, occurring in 2.5% of unilateral vs. 2.4% of bilateral flaps (P=1)., Conclusion: This study demonstrates the rate of complications per flap is significantly higher in bilateral versus unilateral deep inferior epigastric perforator flap breast reconstruction. Bilateral DIEP breast reconstruction should be decided on a case-by-case basis., Level of Evidence: Prognostic/Risk Study, Level II., (Copyright © 2023 Elsevier Masson SAS. All rights reserved.)
- Published
- 2023
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10. An exploratory cross-sectional study of the effects of ongoing relationships with accompanying patients on cancer care experience, self-efficacy, and psychological distress.
- Author
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Pomey MP, Nelea MI, Normandin L, Vialaron C, Bouchard K, Côté MA, Duarte MAR, Ghadiri DP, Fortin I, Charpentier D, Lavoie-Tremblay M, Fernandez N, Boivin A, Dorval M, Desforges M, Régis C, Ganache I, Bélanger L, Rosberger Z, Danino MA, Pelletier JF, Vu TTT, and de Guise M
- Subjects
- Humans, Female, Cross-Sectional Studies, Stress, Psychological psychology, Self Efficacy, Adaptation, Psychological, Surveys and Questionnaires, Breast Neoplasms therapy, Breast Neoplasms psychology, Psychological Distress
- Abstract
Background: Centre hospitalier de l'Université de Montréal in Canada introduced accompanying patients (APs) into the breast cancer care trajectory. APs are patients who have been treated for breast cancer and have been integrated into the clinical team to expand the services offered to people affected by cancer. This study describes the profiles of the people who received the support and explores whether one-offs vs ongoing encounters with APs influence their experience of care, on self-efficacy in coping with cancer, and on their level of psychological distress., Methods: An exploratory cross-sectional study was carried out among patients to compare patients who had one encounter with an AP (G1) with those who had had several encounters (G2). Five questionnaires were administered on socio-demographic characteristics, care pathway, evaluation of the support experience, self-efficacy in coping with cancer, and level of psychological distress. Logbooks, completed by the APs, determined the number of encounters. Linear regression models were used to evaluate the associations between the number of encounters, patient characteristics, care pathway, number of topics discussed, self-efficacy measures in coping with cancer, and level of psychological distress., Results: Between April 2020 and December 2021, 60% of 535 patients who were offered support from an AP accepted. Of these, one hundred and twenty-four patients participated in the study. The study aimed to recruit a minimum of 70 patients with the expectation of obtaining at least 50 participants, assuming a response rate of 70%. There were no differences between G1 and G2 in terms of sociodemographic data and care pathways. Statistical differences were found between G1 and G2 for impacts on and the return to daily life (p = 0.000), the return to the work and impacts on professional life (p = 0.044), announcement of a diagnosis to family and friends (p = 0.033), and strategies for living with treatment under the best conditions (p = 0.000). Significant differences were found on the topics of cancer (p = 0.000), genetic testing (p = 0.023), therapeutic options (p = 0.000), fatigue following treatment (p = 0.005), pain and discomfort after treatment or surgery (p = 0.000), potential emotions and their management (p = 0.000) and the decision-making processes (p = 0.011). A significant relationship was found between the two groups for patients' ability to cope with cancer (p = 0.038), and their level of psychological distress at different stages of the care pathway (p = 0.024)., Conclusions: This study shows differences between one-time and ongoing support for cancer patients. It highlights the potential for APs to help patients develop self-efficacy and cope with the challenges of cancer treatment., (© 2023. The Author(s).)
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- 2023
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11. BREAST-Q Patient-reported Outcomes in Different Types of Breast Reconstruction after Fat Grafting.
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Retchkiman M, Elkhatib A, Efanov JI, Gagnon A, Bou-Merhi J, Danino MA, and Bernier C
- Abstract
Breast reconstruction after mastectomy improves patient quality of life. Independently of the type of reconstruction, ancillary procedures are sometimes necessary to improve results. Fat grafting to the breast is a safe procedure with excellent results. We report patient-reported outcomes using the BREAST-Q questionnaire after autologous fat grafting in different types of reconstructed breasts., Methods: We performed a single-center, prospective, comparative study that compared patient-reported outcomes using the BREAST-Q in patients after different types of breast reconstruction (autologous, alloplastic, or after breast conserving) who subsequently had fat grafting., Results: In total, 254 patients were eligible for the study, but only 54 (68 breasts) completed all the stages needed for inclusion. Patient demographic and breast characteristics are described. Median age was 52 years. The mean body mass index was 26.1 ± 3.9. The mean postoperative period at the administration of BREAST-Q questionnaires was 17.6 months. The mean preoperative BREAST-Q was 59.92 ± 17.37, and the mean postoperative score was 74.84 ± 12.48 ( P < 0.0001). There was no significant difference when divided by the type of reconstruction., Conclusion: Fat grafting is an ancillary procedure that improves the outcomes in breast reconstruction independently of the reconstruction type and heightens patient satisfaction, and it should be considered an integral part of any reconstruction algorithm., (Copyright © 2023 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)
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- 2023
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12. Anatomical Study of the Penile Suspensory System: A Surgical Application to Micropenis.
- Author
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Danino MA, Benkahdra M, El Khatib A, Yafi N, Trouilloud P, Danino RP, and Laurent R
- Abstract
Penile enlargement surgery is the second most desired cosmetic procedure in men worldwide. The mainstay of penile lengthening procedures is a partial release of the penile suspensory ligament system. Concerns regarding erect penis stability after this procedure have been raised by the surgical community. This study describes the anatomical features of the penile suspensory ligament system and explores the stability mechanisms of the penis., Methods: This study is subdivided in two parts: an anatomical analysis and a clinical analysis. The anatomical part consists of a dissection of eight male cadavers to describe the anatomy and test the stability after sectioning successively the suspensory ligaments. The clinical part consists of an analysis of 30 patients with micropenis operated on for penile lengthening by a penile suspensory ligament release and lipofilling., Results: The suspensory apparatus consists of four distinct ligamentous structures: fundiform, suspensory, dense vertical, and arcuate ligaments. These different structures are lax superficially but become firm and tense posteriorly. The section of the fundiform and suspensory ligaments did not destabilize the penis., Conclusion: Penile lengthening by way of cautious suspensory ligament release can be performed without erection instability., Competing Interests: Disclosure: The authors have no financial interest to declare in relation to the content of this article., (Copyright © 2023 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)
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- 2023
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13. Silicone particles in capsules around breast implants: Establishment of a new pathological methodology to assess the number of particles around breast implants.
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Dziubek M, Laurent R, Bonapace-Potvin M, Gaboury L, and Danino MA
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- Humans, Silicones, Prospective Studies, Breast Implants, Breast Implantation
- Abstract
Introduction: The presence of silicone particles in breast implant capsules has been observed since the 1970s. Since then, little data has been published regarding the amount of silicone that is susceptible to migrate into the capsule. Quantifying the amount of silicone migration from the implant to the capsule could inform on the level of silicone exposure a patient with breast implants may experience in the short- or long-term. The objective of this study is to present a histological quantification methodology of the number of silicone particles present in breast implant capsules., Materials and Methods: A prospective study was performed on capsule samples from patients requiring revision surgery. The slides were digitalized and analyzed with a viewer software. For each sample, we (1) manually counted each silicone particle, (2) measured the average particle size, (3) measured the capsule surface area, and (4) calculated the particle number density in each capsule sample. The average of all capsule samples' particle number densities was then compared to the total volume of the capsule to estimate the total number of silicone particles found within the capsule of each breast implant., Results: Six capsules from six different patients were analyzed. Two capsules were from saline implants while four capsules were from silicone implants. All four silicone implant capsules contained between 352,928 and 9,002,235 silicone particles. The particle number density ranged from 20.5 to 683.5 particles per mm
3 of capsule. The two saline-filled implant capsules were free of silicone particles. The average of all capsule samples' particle number densities was then compared to the total volume of the capsule to estimate the total number of silicone particles found within the capsule of each breast implant., Conclusions: We describe a new and reproducible methodology to quantify realistically the silicone particles in the periprosthetic capsule of breast implants., (Copyright © 2022 Elsevier Masson SAS. All rights reserved.)- Published
- 2023
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14. Immediate fine-tuning of DIEP flaps using the Wise pattern mastectomy: Description of the technique and a retrospective analysis of complication rates.
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El Khatib A, Bou-Merhi J, Awaida C, Bernier C, Gagnon A, Retchkiman M, Odobescu A, and Danino MA
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- Female, Humans, Mastectomy, Necrosis, Retrospective Studies, Treatment Outcome, Breast Neoplasms, Mammaplasty
- Abstract
Introduction: Elliptical skin-sparing mastectomy in patients with large or ptotic breasts usually leaves loose mastectomy skin flaps, which need to be either resected or gathered over the DIEP flap. This results in poor control of the breast footprint and under-projected DIEP flaps in a loose mastectomy skin pocket, that tend to slip laterally towards the axilla. We believe that the use of a Wise pattern mastectomy will allow for immediate treatment of these concerns., Materials and Methods: A retrospective, uncontrolled analysis of a prospectively-maintained database of patients operated by the five surgeons performing breast reconstructions at the University of Montreal Hospital Centre. Study population was patients with a BMI of over 25 and grade II/III breast ptosis who underwent a Wise pattern mastectomy with immediate DIEP flap reconstruction. Analysis was performed of the complication rates of the technique in the first six months after the surgery., Results: Out of a total of 53 breasts in 44 patients reconstructed with a DIEP flap immediately post Wise pattern mastectomy, we report nine cases of partial mastectomy-flap necrosis not needing revision, five cases of significant mastectomy flap necrosis needing debridement and skin grafting, and two cases of inability to adequately close the Wise pattern intraoperatively after DIEP placement, necessitating retention of DIEP skin in the inferior pole. None of the mastectomy flap complications occurred in irradiated breasts., Conclusion: In patients with large or ptotic breasts, the Wise pattern mastectomy before an immediate DIEP reconstruction allows for immediate shaping of the breast by controlling the breast pocket, footprint, and excess skin., (Copyright © 2022. Published by Elsevier Masson SAS.)
- Published
- 2022
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15. Oversized lotus petal flap for reconstruction of extensive perineal defects following abdomino perineal resection.
- Author
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Papas Y, Laurent R, Efanov IJ, Paek L, and Danino MA
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- Humans, Perineum, Anus Neoplasms, Myocutaneous Flap, Perforator Flap, Proctectomy, Plastic Surgery Procedures
- Abstract
Introduction: Abdominoperineal resection (APR) of low rectal and anal tumors are performed for optimal oncological outcome but results in large defects in the perineum. Although vertical rectus abdominus (VRAM) flap is commonly employed for extensive perineal reconstruction, donor site morbidity remains problematic. The fascio-cutaneous "lotus petal" flap is an appealing option for reconstructing perineal defects as it may benefit from less donor site morbidity than other techniques. The purpose of this study is to demonstrate that the lotus flap should not only be limited to small and moderate sized defects, but can also be applied to extensive APR., Material and Methods: A systematic review of the literature on the outcomes and dimensions of the lotus flap was performed. Articles with clear anatomical landmarks and internal pudendal artery flaps dimensions were identified. Afterwards, the lotus flap technique was applied on a series of patients with extensive perineal defects following APR treated in our center., Results: Four articles on internal pudendal artery perforator flap were selected. The average reported size of this flap was 13cm×6cm. In our center, reconstruction of the perineum with oversized lotus flaps was performed on 10 consecutive patients. None had partial/complete flap loss or donor-site morbidity. The use of a Jack-Knife surgical position, indocyanide green fluorescence imaging, and preservation of a proximal skin bridge can extend the size of a secure flap to up to 20cm in length., Conclusion: The oversized lotus flap is a reliable option for reconstruction after extensive APR., (Copyright © 2022 Elsevier Masson SAS. All rights reserved.)
- Published
- 2022
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16. A New Technique for Breast Pocket Adjustment: Argon Beam Thermal Capsulorrhaphy.
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Awaida CJ, Paek L, and Danino MA
- Abstract
Implant malposition remains one of the main complications of aesthetic breast augmentation and alloplastic breast reconstruction with expanders and implants. Many capsulorrhaphy techniques have been described to adjust the breast pocket and correct the malposition. In this study, we tested the efficacy of the argon beam coagulator (ABC) for lateral capsulorrhaphy on breast reconstruction patients at the time of expander replacement with a permanent implant. We also experimentally compared the effects of the ABC and the standard electrocautery on fragments of healthy breast capsule. We noted a 69.5% capsule shrinkage with the ABC versus 46.8% with the standard electrocautery. We concluded that breast capsulorrhaphy using the ABC is a safe and efficient technique for the correction of breast implant malposition in both reconstructive and aesthetic breast surgery., (Copyright © 2022 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)
- Published
- 2022
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17. Applying Health Utility Outcome Measures and Quality-Adjusted Life-Years to Compare Hand Allotransplantation and Myoelectric Prostheses for Upper Extremity Amputations.
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Efanov JI, Izadpanah A, Bou-Merhi J, Lin SJ, and Danino MA
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- Adult, Aged, Case-Control Studies, Female, Humans, Male, Middle Aged, Pilot Projects, Replantation, Amputation, Traumatic surgery, Artificial Limbs, Hand Transplantation, Health Status Indicators, Patient Reported Outcome Measures, Quality of Life, Quality-Adjusted Life Years
- Abstract
Background: An amputation of the upper extremity not only is devastating for the patient's physical, emotional, and social well-being but also constitutes a financial stress for both the patient and the health care system. The objective of this study was to determine the utility and quality-adjusted life-years of hand allotransplantation versus myoelectric prostheses and to compare these measures in patients afflicted with unilateral versus bilateral amputations., Methods: A survey was administered on bilateral amputees, unilateral amputees, replantation patients, and healthy controls. Patient demographics, functional patient-reported outcomes, quality-of-life questionnaires, and utility outcome measures were calculated for four different scenarios: hand transplantation and myoelectric prostheses with or without complications., Results: Five bilateral amputees, 12 unilateral amputees, nine replantation patients, and 45 healthy controls completed the survey. The highest quality-adjusted life-years were obtained in the replantation patient group for the scenario of myoelectric prosthesis without complications (mean, 34.8 years). Altogether, there was no statistically significant difference between hand transplantation and myoelectric prostheses (p = 0.36). On subgroup analysis, unilateral amputees reported significantly higher quality-adjusted life-years for myoelectric prostheses rather than hand transplantation (6.4; p = 0.0015), whereas bilateral amputees did not demonstrate a significant difference (-2.4; p = 0.299)., Conclusions: Utility and quality-adjusted life-years do not differ significantly between hand transplantation and myoelectric prostheses, except in unilateral amputees with myoelectric prostheses, who had higher quality-of-life scores. Based on trends from this pilot study, myoelectric prostheses may be considered for unilateral amputees, whereas no superiority can be demonstrated between both treatments in bilateral amputees., Clinical Question/level of Evidence: Therapeutic, III., (Copyright © 2022 by the American Society of Plastic Surgeons.)
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- 2022
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18. Commentary on: Defining Double Capsules: A Clinical and Histological Study.
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Danino MA, Giot JP, and Efanov JI
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- Capsules, Humans, Research Design, Breast Implants
- Published
- 2021
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19. Commentary on: In Vitro Evaluation of Common Antimicrobial Solutions Used for Breast Implant Soaking and Breast Pocket Irrigation-Parts 1 and 2.
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Danino MA, Efanov JI, Awaida C, Benarous D, and Paek L
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- Breast, Humans, Anti-Infective Agents, Breast Implantation adverse effects, Breast Implants adverse effects
- Published
- 2021
- Full Text
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20. Biocell-Initial patents versus user instructions guide: A discrepancy at the core of a crisis.
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Retchkiman M, El-Khatib A, Nazhat Al Yafi M, and Danino MA
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- Female, Humans, Breast Implantation, Breast Implants, Breast Neoplasms surgery, Lymphoma, Large-Cell, Anaplastic surgery
- Abstract
Purpose: Our aim is to do a comparative qualitative analysis of patents and "User Manuals" of the Biocell textured implants in order to determine if red flags were omitted when marketing and using Biocell textured implants., Materials and Methods: We performed a systematic qualitative analysis using the NVivo software version 11 of the patents describing the Biocell textured implants prior to their approval by the FDA and of user guides published by the 3 companies owning the patents (McGhan, Inamed, Allergan). To guide our thematic analysis, we used a form of systems theory known as the complexity theory., Results: Four patents related to Biocell and 2 user manuals (McGhan- Inamed and Allergan) were analyzed. Four themes emerged from the patents: invention description, mechanism of action (Tissue ingrowth), the timing of the mechanism of action and hypothetical actions on capsular contractures prevention. Of all patent's content, 34% described the invention, 29% the mechanism of action (tissue ingrowth), 1% the timing of this mechanism of action and 34% a hypothetical action against capsular contracture. Solid evidence was found on the concept of anchoring and very little on capsular contracture. On the user guide side, the main themes were indications and contraindications, surgical techniques and long-term effects. The "directed" content analysis approach of the user guides regarding the patent's themes reflected that 94% of the user guides content related to the patent thematics was about the hypothetical role on capsular contracture while only 4% was about invention description and 1.5% about tissue ingrowth., Conclusions: This analysis highlights the discrepancies between patents of Biocell textured implants and user guides for these implants. The indications of use of a treatment or device can evolve quicker than the study of its potential complications and side effects. The BIA-ALCL crisis should serve as a cautionary tale to the plastic surgery community which embraces new technologies eagerly, and sometimes precariously, in a mission to advance patient care., (Copyright © 2021 Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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21. Partial DIEP flap loss in a patient with history of abdominal liposuction.
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Papas Y, Bou-Merhi J, Odobescu A, Retchkiman M, and Danino MA
- Subjects
- Contraindications, Epigastric Arteries diagnostic imaging, Epigastric Arteries surgery, Humans, Lipectomy adverse effects, Mammaplasty adverse effects, Perforator Flap
- Abstract
Classically, history of prior abdominal liposuction has been considered a relative contraindication for breast reconstruction using deep inferior epigastric perforator (DIEP) flap. The rationale for this is based on the fact that liposuction can possibly damage perforating vessels, which could compromise flap survival. However, multiple recently published reports have shown that imaging using CT angiography or colour Duplex ultrasonography could be used to accurately assess the adequacy of the perforating vessels before DIEP flap harvest. This contraindication is currently being reconsidered in the scientific literature. We present a case of partial DIEP flap loss in a patient with history of abdominal liposuction that happened despite preoperative identification of adequate perforators using CT angiography and intraoperative clear evidence of patent anastomoses. This occurrence reopens in our view the question of whether DIEP flaps can be safely performed on patients with a history of abdominal liposuction, even in the presence of adequate perforators on regular CT angiography or Doppler ultrasonography. While abdominal liposuction may not injure perforating vessels, its detrimental effect on linking micro-vessels within the flap cannot be fully evaluated using CT Angiography. Therefore, the use of another imaging modality, such as the indocyanine green laser angiography, to assess perfusion before DIEP flap harvesting is performed and could be considered in patients with history of abdominal liposuction., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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22. Thiel-embalmed porcine placenta: A valid and reusable microsurgical practice model.
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Retchkiman M, Doucet O, Dimitropoulos G, Efanov JI, Lussier B, Habib F, Noël G, Harris PG, and Danino MA
- Subjects
- Animals, Cadaver, Female, Humans, Pregnancy, Prospective Studies, Reproducibility of Results, Swine, Embalming, Placenta
- Abstract
Background: Simulation models are increasingly important for skill acquisition during microsurgery training. Prosthetics, living and non-living biological models have been proposed in the literature in the optics of recreating real-life scenarios in a controlled environment. This study aims to validate and prove the reusability of a novel non-living biological model: the porcine placenta., Methods: A prospective comparative study was carried out to assess face and content validities of the proposed model, as well as the reusability and quality of the Thiel-embalming method. Participants were asked answer a questionnaire for each anastomosis they performed on porcine placental vessels of ≤2mm (small) and 2-4mm (large). Scores were classified according to different subgroups, either small or large vessels and first or second sessions. Reliability analysis of the questionnaire was carried out using Cronbach's α, to ensure an α>0.7. Median scores for each question were analyzed using boxplots and compared amongst each subgroup using a non-parametric independent Mann-Whitney U test., Results: With nine participants, the Cronbach's α for each category of question was 0.867, 0.778, 0.720 and 0.593. Statistical differences were found between responses of small and large vessels on 5/10 questions, where large vessels reported higher validity. No statistical differences were found between scores of the first and second sessions., Conclusion: By evaluating face and content validity, the Thiel-embalmed porcine placenta has proven its suitability as a microsurgery model, especially for vessels of larger caliber. Qualities that distinguish this model is its reliable reusability, its low cost-effectiveness, and its ethical acceptability., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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23. [Impact of Facebook patient groups in the surgical decision making process: The example of Biocell® macro-textured implants recall].
- Author
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Danino MA, Giaccone D, Abdolraziq M, Retchkiman M, Paek LS, Bou-Merhi JS, Matetsa E, and Iezzoni J
- Subjects
- Decision Making, Female, Humans, Retrospective Studies, Breast Implantation, Breast Implants, Breast Neoplasms surgery, Lymphoma, Large-Cell, Anaplastic surgery, Social Media
- Abstract
Background: The use of social media, has been a major upheaval in our lifestyles in the last decade. At the forefront in the crisis of BIA-ALCL, as soon as February 2019, our university centre took steps to identify and contact all patients with macro-textured implants. The purpose of this recall was to educate patients and establish a monitoring system. The purpose of this work is to analyse the patients' decision-making process., Methods: A retrospective study of patients, who requested and attended appointments with a surgeon, was made. The number of patients with clinical symptoms of BIA-ALCL, the number of patients who requested implant removal surgery, the histological diagnoses found after surgery were collected. We then calculated the proportion of Facebook group members among patients who required implant removal in the absence of a diagnosis or even warning signs., Results: Seven hundred and seventy women requested an appointment with one of the surgeons in our department. Of all the women who requested consultation, 497 (64.55%) had symptoms. 199 patients were members or had attended one of the Facebook groups of patients. At the end of the consultation with their surgeon, almost 25% of patients made a decision to have the implant removed against medical advice. Among these patients, 67% were part of a group of patients on the Facebook network. To date, no patient has been diagnosed with BIA-ALCL., Conclusions: These results support the hypothesis that belonging to Facebook groups of patients becomes, for some, a key element in the decision-making process beyond expert opinion. In the future, preliminary work with patient groups on social networks should be done in order to obtain additional health efficiency., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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24. Internal derangement of temporomandibular joint: Umbrella perforated screw technique.
- Author
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Arab K, Alfaqeeh FA, and Danino MA
- Abstract
Introduction: Umbrella shaped Perforated Screws (UPS) were developed for the use of orthopedic surgery to facilitate anchoring and fixation of the tissue to bone. We here present a retrospective study of Temporomandibular joint Internal derangement (ID) with fixation using this type of screws., Materials & Methods: We conducted a retrospective study including patients treated for ID using UPS to reposition the articular disc. The study included patients treated between 1998 and 2005. Patients were selected in concordance with clinical symptoms and signs of severity. All patients had an MRI (open/closed mouth) to confirm the diagnosis. Wilkes classification of temporomandibular disease (TMD) was adopted in the selection criteria., Results: Hundred and five patients were included, 92 female and 13 males with average age of 37.56. Dentists or general physicians mainly addressed these patients to our unit. The mean time from symptoms initiating to first consultation was 3.77 years, while the mean timing of surgery after initial consultation was 9.38 months. Patients have presented with various symptoms before the surgery including pain, limitation in eating habits and clicking. 77% of the patients had no or minimal pain post surgery. Hundred and one patients had good eating habits after surgery. Only 34 patients had persistent clicking despite surgery. We had neither infection nor hematoma as complication. Major complication to this technique is frontal paresis (14 patients), which was explained to all patients preoperatively. This paresis recovered in less than 2 months in all patients. We had 89.5% of the patients satisfied with their results., Conclusion: UPS are useful in the field of plastic surgery. This novel technique has the advantage of not compromising the vascular supply of the TMJ articular surface. This technique provides a simple, fast and efficient technique for posterior aponeurosis flap fixation. Our overall satisfactory rate was comparable to other studies., Competing Interests: There are no conflicts of interest., (Copyright: © 2021 Journal of Family Medicine and Primary Care.)
- Published
- 2021
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25. Effects of a preoperative neuromobilization program offered to individuals with carpal tunnel syndrome awaiting carpal tunnel decompression surgery: A pilot randomized controlled study.
- Author
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Paquette P, Higgins J, Danino MA, Harris P, Lamontagne M, and Gagnon DH
- Subjects
- Decompression, Humans, Median Nerve surgery, Pain, Pilot Projects, Treatment Outcome, Carpal Tunnel Syndrome surgery
- Abstract
Study Design: Pilot randomized controlled trial with parallel groups., Introduction: Engaging individuals with carpal tunnel syndrome (CTS) awaiting carpal tunnel decompression surgery in a preoperative rehabilitation program may mitigate pain and sensorimotor impairments, enhance functional abilities before surgery, and improve postoperative outcomes., Purpose of the Study: To assess the feasibility and the efficacy of a novel preoperative neuromobilization exercise program (NEP)., Methods: Thirty individuals with CTS were randomly allocated into a four-week home-based neuromobilization exercise group or a standard care group while awaiting surgery. Outcome measures included feasibility (ie, recruitment, attrition, adherence, satisfaction, and safety) and efficacy metrics (ie, median nerve integrity and neurodynamics, tip pinch grip, pain, and upper limb functional abilities) collected before (ie, at the baseline and about four weeks later) and four weeks after surgery., Results: Thirty individuals with CTS were recruited (recruitment rate = 11.8%) and 25 completed the study (attrition rate = 16.7%). Adherence (94%) and satisfaction with the program (eg, enjoy the exercises and likeliness to repeat the NEP (≥4.2/5) were high and no serious adverse event was reported. NEP-related immediate pre- and post-surgery beneficial effects on pain interference were documented (P = .05, η
2 = .10), whereas an overall increased neurodynamics (P = .04, η2 = .11) and decreased pain severity (P = .01, η2 = .21) were observed., Discussion: Engaging in the proposed NEP has limited beneficial effect as a stand-alone intervention on pre- and post-surgery outcomes for individuals with CTS. Expanding the program's content and attribute by adding other components including desensitization maneuvers and novel therapies promoting corticospinal plasticity is recommended., Conclusion: A preoperative NEP completed by individuals with CTS awaiting surgery is feasible, acceptable, and safe. However, given the limited beneficial effectsof the program, revision of its content and attributes is recommended before proceeding to large-scale trials., (Copyright © 2020 Hanley & Belfus. Published by Elsevier Inc. All rights reserved.)- Published
- 2021
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26. Pain interference may be an important link between pain severity, impairment, and self-reported disability in participants with wrist/hand pain.
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Pelletier R, Bourbonnais D, Higgins J, Mireault M, Harris PG, and Danino MA
- Subjects
- Adult, Aged, Aged, 80 and over, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Self Report, Young Adult, Disability Evaluation, Hand physiopathology, Pain physiopathology, Pain Measurement, Wrist Joint physiopathology
- Abstract
Study Design: Cross-sectional., Introduction: Pain severity, sensory and motor impairment, and psychological (distress and anxiety) and social factors have previously been related to self-reported disability in persons with wrist and hand pain., Purpose of the Study: The purpose of this study to determine the relative contribution of pain severity, measures of impairment (sensory and motor function), psychosocial factors, and pain interference on self-reported disability experienced by persons with heterogeneous orthopedic injuries and conditions of the wrist and hand., Methods: Measures of disability and pain severity as well as measures of sensory (pressure pain thresholds, joint position sense), motor (grip strength, Purdue pegboard), and cognitive performance (Stroop test) and psychosocial variables related to pain and participation (West Haven-Yale Multidimensional Pain Inventory) were administered to 60 participants with wrist and hand pain. Pearson product correlations controlled for age and sex, and multiple linear regression was performed to determine the relationship between measures of impairment, pain severity, psychosocial variables, and pain interference with self-reported disability assessed with the Disability of Arm, Shoulder and Hand (DASH) questionnaire., Results: The best-fitting regression model with DASH scores entered as the dependent variable (F
4,50 = 28.8, P < .01) included MPI Pain Interference (β = -0.54), Life Control (β = -0.16), Purdue pegboard scores (β = -0.32), and Stroop test times (β = 0.21). Pain Interference had the strongest correlation with self-reported disability (adjusted R2 = 0.67, P < .01)., Conclusion: Pain interference appears to be an important factor explaining the link between impairment, pain severity, and self-reported disability. Addressing pain interference may be important to improve outcomes in this population., (Copyright © 2019 Hanley & Belfus. Published by Elsevier Inc. All rights reserved.)- Published
- 2020
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27. Immediate breast reconstruction surgery with expander/direct implant and use of acellular dermal matrix: Does hormone therapy increases the risk of infection?
- Author
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Danino MA, Giaccone D, El Khatib A, Dimitropoulos G, Doucet O, Gagnon A, Retchkiman M, Bou-Merhi J, and Bernier C
- Subjects
- Female, Hormones, Humans, Mastectomy, Prospective Studies, Retrospective Studies, Acellular Dermis, Breast Neoplasms surgery, Mammaplasty
- Abstract
Background: The use of hormone therapy (tamoxifen and aromatase inhibitors) has been shown to increase venous thromboembolism. However, while estrogens play a crucial role in wound healing, no study has assessed the impact of tamoxifen or aromatase inhibitors on other postoperative breast reconstruction complications, including infections, necrosis, capsular contracture and seroma. As breast cancer patients undergoing Implants-ADMs breast reconstruction are often receiving hormone therapy, it is unclear whether this increased infection risk is associated with increased infections cases., Methods: A prospective study was performed on patients undergoing breast reconstruction at an academic institution from 2013 to 2016. Patients were divided by use of hormone therapy at the time of surgery. Complication rates, including infections, necrosis, seroma and hematomas, were compared and analyzed using univariate and logistic regression models., Results: Among a total of 112 patients (183breasts), 58 patients (91 breasts) were receiving hormone therapy and 54 patients (92 breasts) were not. The hormone therapy group had a higher incidence of postoperative mastectomy skin infection (20.7% versus 7.4%; P=0.0447), we didn't find any significant differences in necrosis., Conclusions: Hormone therapy was associated with a higher incidence of Infections after breast reconstruction with ADMs and implants. The authors propose an individualized approach to the preoperative cessation of tamoxifen or aromatase inhibitors. Immediate breast reconstruction surgery with expander/direct implant and use of acellular dermal matrix: does hormone therapy increases the risk of infection?, (Copyright © 2020. Published by Elsevier Masson SAS.)
- Published
- 2020
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28. Analysis of Allergan's Biocell Implant Recall in a Major University Breast Center.
- Author
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Danino MA, Dao L, Retchkiman M, Matetsa E, Iezzoni J, and Bou-Merhi JS
- Abstract
Background: In May 2019, Health Canada released a national recall of all macrotextured breast implants that later became international in July 2019 regarding increasing accounts of suspected breast implant-associated anaplastic large cell lymphoma. In Canada, this recall targeted Allergan's Biocell implants. This report presents the postmortem of this comprehensive single-center recall, which had to be undertaken in a limited time., Methods: Four months after the beginning of the recall, the authors analyzed the transcript of meetings to characterize the team assembled during the recall. Then, to reconstruct the systemic work plan as well as the crucial steps and actors of the recall process, a chronologic table of the 5 meetings held during the recall, agendas and transcripts of every meeting, electronic correspondences, and other documents created during the recall were consulted., Results: Between 1996 and 2018, 1260 women were affected by the recall, meaning that they received Allergan's macrotextured implants. Ninety-two patients underwent explantation of the device or will undergo implant explantation. To this day, no patient was diagnosed with breast implant-associated anaplastic large cell lymphoma., Conclusions: Our center's experience highlights the utmost importance of building a national breast implants registry. We recommend breast centers to develop preestablished crisis centers and train staff to better prepare for future device recalls and minimize waste of time. Finally, we believe that implants should be identified based on the characteristics rather than their brand name., Competing Interests: Disclosure: Dr. Danino is a consultant for Allergan, Johnson & Johnson, and Establishment Labs. The other authors have no financial interest to declare in relation to the content of this article., (Copyright © 2020 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)
- Published
- 2020
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29. Bilateral sensory and motor as well as cognitive differences between persons with and without musculoskeletal disorders of the wrist and hand.
- Author
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Pelletier R, Paquette É, Bourbonnais D, Higgins J, Harris PG, and Danino MA
- Subjects
- Cross-Sectional Studies, Disability Evaluation, Female, Hand Strength, Humans, Male, Middle Aged, Pain Measurement, Cognition, Hand physiopathology, Motor Skills physiology, Musculoskeletal Diseases physiopathology, Wrist Joint physiopathology
- Abstract
Background: Sensory and motor disturbances are characteristic of musculoskeletal injuries and conditions. Rehabilitation interventions aimed at remediating these disturbances are traditionally exclusively targeted to the affected area. However, there is some evidence of bilateral changes in sensory and motor function associated with unilateral injuries and conditions suggesting central changes. Deficits on specific cognitive tasks have also been documented in persons with chronic pain., Purpose: The purpose of the present study was to determine if participants with unilateral pain arising from heterogeneous wrist/hand injuries and conditions demonstrate bilateral changes in sensory and motor functions as well as cognitive deficits., Design/methods: Sensory (Pressure Pain Thresholds, Two Point Orientation Discrimination), Motor (grip strength and Purdue Pegboard), and Cognitive function (Stroop test and mental rotation task) were measured in 30 participants with wrist/hand pain and 30 healthy control participants in an observational cross-sectional study., Results: Participants with unilateral wrist/hand pain demonstrated differences in cognitive function measured with the Stroop test (p = 0.03). They also demonstrated bilateral sensorimotor differences in pressure pain thresholds (p = 0.03), grip strength (p = 0.00) and Purdue pegboard test (p = 0.03) results compared to healthy control participants., Conclusion: Cognitive as well as bilateral alterations in sensory and motor function in participants with musculoskeletal injuries and conditions suggest central changes are involved in their pathophysiology. These findings in persons with heterogeneous injuries/conditions suggest that these changes are not specific to an injury/condition. Bilateral sensorimotor changes have important implications with regards to the pathophysiology of musculoskeletal disorders of the wrist/hand, for rehabilitative interventions and research., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Published
- 2019
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30. Preliminary Results Supporting the Bacterial Hypothesis in Red Breast Syndrome following Postmastectomy Acellular Dermal Matrix- and Implant-Based Reconstructions.
- Author
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Danino MA, El Khatib AM, Doucet O, Dao L, Efanov JI, Bou-Merhi JS, and Iliescu-Nelea M
- Subjects
- Adult, Biofilms, Breast Implants adverse effects, Breast Neoplasms surgery, Female, Humans, Mastectomy methods, Microscopy, Electron, Scanning, Middle Aged, Acellular Dermis adverse effects, Breast Implantation adverse effects, Erythema microbiology, Gram-Negative Bacterial Infections diagnosis, Gram-Positive Bacterial Infections diagnosis, Prosthesis-Related Infections microbiology
- Abstract
Acellular dermal matrices have become a mandatory tool in reconstructive breast surgery. Since their introduction, they have been considered to be nonreactive and nonimmunogenic scaffolds. However, some patients who undergo implant-based breast reconstruction with acellular dermal matrices develop postoperative cutaneous erythema overlying their matrices, a condition commonly referred to as red breast syndrome. The aim of this study was to gain a better understanding of this phenomenon. An analysis was conducted on consecutive patients who underwent acellular dermal matrix- and implant-based breast reconstructions and developed red breast syndrome that was treated surgically between April of 2017 and June of 2018 at the authors' institution. During surgery, 1-cm specimens of acellular dermal matrix were sampled and analyzed by scanning electron microscopy. Observations were charted to score and record the presence and thickness of biofilm, and for identification of bacteria. These measurements were performed using Adobe Photoshop CS6 Extended software. Six postmastectomy breast reconstruction patients were included, all with AlloDerm Ready-to-Use-based reconstructions. All specimens were colonized by various bacteria ranging from Gram-negative bacilli to Gram-positive microorganisms. Biofilm was present in all studied specimens. The cause of skin erythema overlying acellular dermal matrix grafts, and the so-called red breast syndrome, may be related to contamination with various bacteria. Although contamination was omnipresent in analyzed samples, its clinical significance is variable. Even if acellular dermal matrix-based reconstructions are salvaged, this could come at the price of chronic local inflammation.
- Published
- 2019
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31. High-Fidelity Microsurgical Simulation: The Thiel Cadaveric Nerve Model and Evaluation Instrument.
- Author
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Odobescu A, Dawson D, Goodwin I, Harris PG, BouMerhi J, and Danino MA
- Abstract
With surgical education moving from a time-based to a competency-based model, developing high-fidelity simulation models has become a priority. The Thiel cadaveric model has previously been used for a number of medical and surgical simulations, including microvascular simulation. We aim to investigate the use of the Thiel model in peripheral nerve simulation and validate a novel evaluation instrument. Sixteen residents ranging from postgraduate years 1 to 6 participated in the study. Their nerve coaptations using Thiel cadaveric nerves were video recorded and evaluated by 5 fellowship-trained microsurgeons using the Micro-Neurorrhaphy Evaluation Scale (MNES). The intraclass correlation among the 5 evaluators was 0.75, revealing excellent interrater reliability. The Cronbach α was .77, underlining the internal consistency of the test items. Bivariate analysis revealed a significant association between the MNES scores and the participants' self-declared level of experience. This correlation was confirmed by mixed modeling. Our results validate the MNES and underscore the utility of the Thiel nerve tissue for peripheral nerve surgical simulation., Competing Interests: Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© 2019 The Author(s).)
- Published
- 2019
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32. Using Intra-arterial tPA for Severe Frostbite Cases. An Observational Comparative Retrospective Study.
- Author
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Al Yafi MN, Danino MA, Izadpanah A, and Coeugniet E
- Subjects
- Adolescent, Adult, Aged, Amputation, Surgical statistics & numerical data, Angiography, Case-Control Studies, Female, Fingers blood supply, Fingers diagnostic imaging, Fingers surgery, Humans, Male, Middle Aged, Retrospective Studies, Rewarming, Time-to-Treatment, Young Adult, Fibrinolytic Agents therapeutic use, Frostbite therapy, Thrombolytic Therapy, Tissue Plasminogen Activator therapeutic use
- Abstract
Frostbite causes tissue damage through five major mechanisms, out of which two are amenable to treatment. The first-line treatment is rapid rewarming therapy using water at 40°C to 42°C, which addresses the formation of ice crystals in the intra and extra cellular compartments. The second mechanism is progressive tissue ischemia after rewarming and is only accessible to a second-line therapy represented by thrombolysis. This study aimed to determine the efficacy of thrombolysis. This is a single-center retrospective cohort study, where it was aimed to evaluate two groups of patients. A total of 18 patients were included in this study. Mean times between injury to thrombolytic therapy and admission to thrombolytic therapy was 26.04 hours (SD 13.6) and 9.65 hours (SD 9.89), respectively. All patients suffered injuries ranging from second-degree deep to third degree. The rate of patients having complete, partial, and no angiographic responses were 55.6%, 11.1%, and 33.3%, respectively. The main outcome of interest showed that 11 (61.1%) patients in total had amputations at different levels. Results showed that in the intervention group, five (55.6%) of the patients had amputations compared with six (66.7%) from the control group (P = .6) at comparable levels of amputation. The literature supports that the use of intra-arterial tissue plasminogen activator might be beneficial for severe cases of frostbites; however, it lacks of studies of major significance and results are often controversial. Our study has not shown statistically significant results on amputation levels and cannot support the hypothesis of efficacy of thrombolytic therapy., (© The Author(s) 2019. Published by Oxford University Press on behalf of the American Burn Association. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2019
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33. A Step Forward Toward the Understanding of the Long-Term Pathogenesis of Double Capsule Formation in Macrotextured Implants: A Prospective Histological Analysis.
- Author
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Glicksman CA, Danino MA, Efanov JI, El Khatib A, and Nelea M
- Subjects
- Adult, Aged, Breast surgery, Breast Implantation instrumentation, Female, Fibrosis, Humans, Implant Capsular Contracture pathology, Implant Capsular Contracture surgery, Middle Aged, Myofibroblasts, Prospective Studies, Stress, Mechanical, Surface Properties, Breast pathology, Breast Implantation adverse effects, Breast Implants adverse effects, Device Removal, Implant Capsular Contracture etiology
- Abstract
Background: Although increasingly reported in the literature, most plastic surgeons cannot define the etiology of double capsules. Often an incidental finding at implant exchange, double capsules are frequently associated with macrotextured devices. Several mechanisms have been proposed, including at the forefront that shearing causes a delamination of the periprosthetic capsule into a double capsule., Objectives: This study was designed to confirm the hypothesis that mechanical forces are involved in formation of double capsules by histological analysis., Methods: A prospective analysis of consecutive implants with double capsules removed over 2 years was performed. Data collected at the time of surgery included Baker classification, reason for explant, implant manufacturer and style, and any presence of a seroma associated with the capsule. Specimens were sent for analysis by histology utilizing hematoxylin and eosin and alpha-smooth muscle actin staining techniques., Results: Eight double capsules were collected for specimen analysis. All capsules demonstrated evidence of granulation tissue, alpha-smooth muscle actin positive myofibroblasts, and folds with embedded texture. Fibrosis surrounded weak areas with presence of layering and splitting, creating a potential space that is prone to separation. Tears and folds from granulomatous reaction are also present within the outer layer of the double capsule, which can only be explained by a mechanical shearing force as a pathogenic mechanism., Conclusions: Understanding the pathogenesis of double capsules may allow plastic surgeons to refine their indications for macrotextured implants while providing guidance to patients on avoidance of activities that produce shear-forces. The findings support the hypothesis that shearing forces delaminate the capsule into 2 separate distinct capsules., (© 2018 The American Society for Aesthetic Plastic Surgery, Inc. Reprints and permission: journals.permissions@oup.com.)
- Published
- 2019
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34. A health utility assessment of trapeziectomy with ligament reconstruction and tendon interposition for thumb trapeziometacarpal osteoarthritis.
- Author
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Efanov JI, Nguyen DD, Izadpanah A, Danino MA, and Harris P
- Subjects
- Female, Humans, Male, Middle Aged, Osteoarthritis physiopathology, Quality of Life, Range of Motion, Articular, Recovery of Function, Treatment Outcome, Carpometacarpal Joints, Ligaments, Articular surgery, Osteoarthritis surgery, Plastic Surgery Procedures, Thumb, Trapezium Bone surgery
- Abstract
Trapeziectomy with ligament reconstruction and tendon interposition (LRTI) for trapeziometacarpal joint osteoarthritis may have both postoperative benefits and complications. This study sought to determine the health state utility outcome measures of trapeziectomy with LRTI. Patients who underwent trapeziectomy with LRTI were invited to complete the brief Michigan Hand Questionnaire and utility questionnaires outcomes using a visual analogue scale , time trade-off and standard gamble. Quality-adjusted life years (QALYs) were derived from these utility measures. For this study 32 patients were recruited, with a mean age of 61. Most patients (27/32) perceived the procedure as successful. Utility measures and QALYs serve the purpose of comparing different surgical procedures in terms of their impact on the quality of life of patients as a function of the benefits and complications of each procedure. In this study, the utility of trapeziectomy with LRTI was less than has been described for open palmar fasciectomy but more than for total wrist arthrodesis. Level of evidence: IV.
- Published
- 2019
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35. Microcirculatory Free Flap Failure With Patent Anastomosis Salvaged by In Situ Thrombolysis in Vulnerable Phase Burn.
- Author
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Coeugniet E, Al Yafi MN, Lafrance D, Danino MA, Soulez G, Nguyen Q, and Harris P
- Subjects
- Anastomosis, Surgical, Humans, Male, Microcirculation, Postoperative Complications diagnosis, Postoperative Complications etiology, Reoperation, Young Adult, Burns surgery, Free Tissue Flaps blood supply, Postoperative Complications surgery, Plastic Surgery Procedures adverse effects, Thrombolytic Therapy
- Abstract
Free flap reconstruction in acute burns has high failure rates, relating mainly to a systemic inflammatory state. The "vulnerable phase" can last for 6 weeks after burn and can cause thrombosis of the flap microcirculation with patent arterial and venous anastomoses. Revision surgery alone may be unsuccessful, but thrombolysis can lead to flap salvage. We describe a case of successful flap salvage with thrombolysis after unsuccessful revision surgery by permeable arterial and venous anastomoses in a patient in the acute burn phase suffering from microcirculatory thrombosis. Thrombolysis in these cases has not been described to date, but it could contribute to salvaging flaps by radiological intervention alone. A 23-year-old man was admitted with a 38% TBSA burn, including loss of all eyelid skin. The right eye was reconstructed in a satisfactory manner, but the left eye required urgent corneal coverage on day 32 with a dorsalis pedis fasciocutaneous free flap. The flap was hypo-perfused postoperatively, but anastomoses were found to be permeable on exploration. Angiography performed postoperatively after revision confirmed anastomotic patency, but failed to demonstrate small vessel beds within the flap. Thus, r-tPa was given at the anastomosis site and immediately the flap recovered completely. However, a total of 10 packed red blood cell transfusions were needed over the next 9 days. Thrombolysis in the context of free flap microvascular compromise may improve the overall success rates, especially in acute-phase burn patients where this etiology may be found, due to a vulnerable inflammatory period., (© American Burn Association 2019. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2019
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36. In-situ characterization of the bacterial biofilm associated with Xeroform™ and Kaltostat™ dressings and evaluation of their effectiveness on thin skin engraftment donor sites in burn patients.
- Author
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Iliescu Nelea M, Paek L, Dao L, Rouchet N, Efanov JI, Édouard C, and Danino MA
- Subjects
- Adult, Aged, Female, Humans, Male, Microscopy, Electron, Scanning, Middle Aged, Skin Transplantation, Transplantation, Autologous, Young Adult, Alginates, Bacteria ultrastructure, Bandages microbiology, Biofilms, Phenols, Transplant Donor Site microbiology
- Abstract
Biofilm forms when bacteria surrounded by an extracellular matrix aggregate on a surface. It can develop on many surfaces, including wound dressings; this can be particularly nefarious for burn patients undergoing skin grafting (autograft) for burn wound coverage as they often suffer from compromised immune system function. Autograft donor sites are particularly vulnerable to biofilm formation; as such, timely healing of these sites is essential. Our aim was to apply scanning electron microscopy to compare the efficacy of two types of wound dressings in preventing the formation of bacterial biofilm on burn patient skin graft donor sites. One dressing contained bismuth tribromophenate at a concentration of 3% which confers it bacteriostatic properties (Xeroform™). The other was an absorptive alginate calcium sodium dressing (Kaltostat™). Samples of each wound dressing, which were in contact with the skin graft donor site, were prepared for analysis under the scanning electron microscope (SEM) using an original method developed by our research group that aims to maintain the integrity of the biofilm microstructure. Samples prepared by this method were then analyzed using SEM, which allowed the characterization of biofilm and the evaluation of bacterial density on the studied dressing samples. To this day, this imaging technique has been rarely employed for dressing analysis and this is the first time that it is employed for in situ biofilm visualization for this particular application., (Crown Copyright © 2019. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2019
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37. Negative pressure wound therapy as a definitive treatment for upper extremity wound defects: A systematic review.
- Author
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Shine J, Efanov JI, Paek L, Coeugniet É, Danino MA, and Izadpanah A
- Subjects
- Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Arm Injuries surgery, Negative-Pressure Wound Therapy methods, Plastic Surgery Procedures, Skin Transplantation methods, Surgical Flaps transplantation, Wound Healing physiology
- Abstract
Negative pressure wound therapy (NPWT) represents one of the many solutions for complex wounds of the upper extremity. The goal of this study was to investigate the most common indications for definitive treatment of wound defects in the upper extremity with NPWT and to report revision surgery outcomes after its use. A systematic review of the literature was performed. The following keywords and their combinations were used: "upper extremity," "arm," "forearm," "wrist," "hand," "finger" AND "negative-pressure wound therapy," "VAC therapy," "vacuum assisted closure." A total of 45 articles were included, regrouping 404 cases of NPWT in the upper extremity. The forearm was involved in 53% of cases, followed by hand (36%), fingers (10%), and arm (1%). Seventeen different indications were cited, the most common of which were radial forearm flap reconstruction (23%), burn wounds (18%), and compartment syndromes (17%). Of the cases, 90% did not require any subsequent surgical procedure, as opposed to 6% considered partial failures requiring minor revisions and 4% total failures requiring major revisions. Closure of radial forearm flap donor site required the most revision procedures when treated with NPWT. NPWT can be used for several indications pertaining to the reconstruction of the upper extremity. Positive outcomes as a definitive treatment are demonstrated in this systematic review, which reaffirms NPWT as a potent tool for reconstructive endeavours., (© 2019 Medicalhelplines.com Inc and John Wiley & Sons Ltd.)
- Published
- 2019
- Full Text
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38. Scientific Evidence or Personal Beliefs?
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Danino MA, Efanov JI, and Glicksman CA
- Subjects
- Female, Humans, Prospective Studies, Breast Implants adverse effects
- Published
- 2019
- Full Text
- View/download PDF
39. Peripherally Inserted Central Catheters as Potential Risk Factors for Failure in Pedicled Latissimus Dorsi Flaps.
- Author
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Efanov JI, Bouhadana G, and Danino MA
- Abstract
Pedicled latissimus dorsi musculocutaneous flaps are reliable options for reconstruction of torso and head and neck defects. After ensuring that no kink or external compression occurs on the pedicle, the survival rate exceeds 99%. However, we experienced a complete necrosis of the flap after insertion of a peripherally inserted central catheter line. Intraoperative findings demonstrated thrombosis of the subclavian vein over a large segment, which was found to be the cause of flap failure. The clinical significance of this case report is aimed at raising awareness against insertion of peripherally inserted central catheter lines on the ipsilateral arm of a pedicled latissimus dorsi flap.
- Published
- 2019
- Full Text
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40. High Fidelity Microsurgical Simulation: The Thiel Model and Evaluation Instrument.
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Odobescu A, Goodwin I, Berbiche D, BouMerhi J, Harris PG, and Danino MA
- Abstract
Background: The Thiel embalmment method has recently been used in a number of medical simulation fields. The authors investigate the use of Thiel vessels as a high fidelity model for microvascular simulation and propose a new checklist-based evaluation instrument for microsurgical training., Methods: Thirteen residents and 2 attending microsurgeons performed video recorded microvascular anastomoses on Thiel embalmed arteries that were evaluated using a new evaluation instrument (Microvascular Evaluation Scale) by 4 fellowship trained microsurgeons. The internal validity was assessed using the Cronbach coefficient. The external validity was verified using regression models., Results: The reliability assessment revealed an excellent intra-class correlation of 0.89. When comparing scores obtained by participants from different levels of training, attending surgeons and senior residents (Post Graduate Year [PGY] 4-5) scored significantly better than junior residents (PGY 1-3). The difference between senior residents and attending surgeons was not significant. When considering microsurgical experience, the differences were significant between the advanced group and the minimal and moderate experience groups. The differences between minimal and moderate experience groups were not significant. Based on the data obtained, a score of 8 would translate into a level of microsurgical competence appropriate for clinical microsurgery., Conclusions: Thiel cadaveric vessels are a high fidelity model for microsurgical simulation. Excellent internal and external validity measures were obtained using the Microvascular Evaluation Scale (MVES)., Competing Interests: Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2019
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41. Comparison of venous couplers versus hand-sewn technique in free flap breast reconstruction.
- Author
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Dimitropoulos G, Efanov JI, Paek L, Bou-Merhi J, and Danino MA
- Subjects
- Anastomosis, Surgical instrumentation, Anastomosis, Surgical methods, Female, Graft Survival, Humans, Mammaplasty adverse effects, Mastectomy, Middle Aged, Operative Time, Postoperative Complications, Treatment Outcome, Breast Neoplasms surgery, Free Tissue Flaps transplantation, Mammaplasty methods, Suture Techniques adverse effects
- Abstract
Introduction: Despite positive outcomes reported in the literature, some surgeons remain reluctant to the systematic use of venous couplers in free flap tissue transfer. In our institution, the use of the coupler devices for venous anastomosis in free flap breast reconstruction has yet to be adopted by all surgeons. The purpose of the study was to compare postoperative outcomes of coupler-assisted venous anastomoses with hand-sewn techniques in free flap breast reconstruction., Methods: An analysis of collected data was performed on cases of breast reconstruction with free tissue transfer after mastectomy in breast cancer or BRCA-positive patients from 2010 to 2016. Patients were divided into two groups: coupler device and hand-sewn. The primary outcome was survival rate of free flaps. Secondary outcomes included potential complications, as well as surgical characteristics (recipient artery/vein, coupler size, type of hand-sewn anastomosis, size of sutures, number of venous anastomoses, ischemia time, operative time) RESULTS: We included 289 cases in our study. There were no significant differences between groups in terms of post-operative complications or survival rate of the free flaps. Ischemia time was significantly lower in both immediate and delayed reconstruction cases. Operative and anesthesia times were significantly lower only in immediate unilateral cases., Conclusion: Although ischemia time was reduced in the coupler group, we didn't find any significant difference in the operative and anesthesia time in the subgroup analysis, except for the group of immediate unilateral breast reconstruction. Couplers are safe and efficient; nevertheless, our study shows that their qualities cannot yet justify the disappearance of the manual sutures., (Copyright © 2018. Published by Elsevier Masson SAS.)
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- 2019
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42. Investigating Patients' Perception of Microvascular Free Toe Flap for Reconstruction of Amputated Thumbs: A Guide for Surgeons during Informed Consent.
- Author
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Efanov JI, Wong C, Guilbault C, Bou-Merhi J, Harris PG, Izadpanah A, and Danino MA
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- Disability Evaluation, Free Tissue Flaps, Humans, Informed Consent psychology, Patient Reported Outcome Measures, Perception, Practice Guidelines as Topic, Replantation psychology, Retrospective Studies, Surveys and Questionnaires, Toes blood supply, Treatment Outcome, Amputation, Traumatic psychology, Amputation, Traumatic surgery, Esthetics psychology, Informed Consent statistics & numerical data, Patient Satisfaction statistics & numerical data, Recovery of Function physiology, Replantation methods, Thumb, Toes transplantation
- Abstract
Background: After thumb amputations, restoration of function and aesthetic can be accomplished with microvascular free toe flaps. However, many patients in clinical practice do not choose this reconstruction despite positive reported outcomes. This study aims to determine patients' perceptions with respect to free toe flaps to improve areas of informed consent., Methods: A retrospective survey was administered to patients with thumb amputations. Participants were required to complete a questionnaire about patient demographics, the Brief Michigan Hand Questionnaire (bMHQ), the standard gamble/time trade-off questionnaires for utility scores, and a questionnaire investigating potential reasons for electing not to undergo a free toe transfer., Results: Thirty patients were enrolled in the study wherein 53% underwent a replantation procedure, 27% a revision amputation, and 20% a delayed reconstruction. Mean normalized score on the bMHQ was recorded as 63.54. Utility questionnaires yielded mean measures of 0.8967 and 0.86 on the standard gamble and time trade-off, respectively. From 14 elements, a majority (87%) stated flap failure as a major source of concern, followed by lack of understanding of risks and benefits (80%) and prolonged hospital stay (53%). Cultural/religious beliefs, aesthetic appearance of the foot, and concerns about footwear were not reported as important reasons in 90, 80, and 79% of patients, respectively., Conclusion: A better understanding of patients' attitudes and beliefs with respect to free toe flaps will allow surgeons to better address their concerns during informed consent. This study emphasizes the importance to discuss about failure rates, risks, and benefits of the operation and prolonged hospital stay., Competing Interests: None., (Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.)
- Published
- 2018
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43. Reply: Capsular Biofilm Formation at the Interface of Textured Implants and Acellular Dermal Matrix: A Comparative Scanning Electron Microscopy Study.
- Author
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Danino MA, Efanov JI, Paek L, and Nelea MI
- Subjects
- Biofilms, Breast Implants, Humans, Tissue Expansion Devices, Acellular Dermis, Microscopy, Electron, Scanning
- Published
- 2018
- Full Text
- View/download PDF
44. Reply: Do Bacteria and Biofilm Play a Role in Double-Capsule Formation around Macrotextured Implants?
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Danino MA, Paek LS, Elkhatib A, Obeid F, and Boumerhi J
- Subjects
- Bacteria, Biofilms, Breast Implantation, Breast Implants
- Published
- 2018
- Full Text
- View/download PDF
45. Left Right Judgement Task and Sensory, Motor, and Cognitive Assessment in Participants with Wrist/Hand Pain.
- Author
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Pelletier R, Bourbonnais D, Higgins J, Mireault M, Danino MA, and Harris PG
- Abstract
The Left Right Judgement Task (LRJT) involves determining if an image of the body part is of the left or right side. The LRJT has been utilized as part of rehabilitation treatment programs for persons with pain associated with musculoskeletal injuries and conditions. Although studies often attribute changes and improvement in LRJT performance to an altered body schema, imaging studies suggest that the LRJT implicates other cortical regions. We hypothesized that cognitive factors would be related to LRJT performance of hands and feet and that sensory, motor, and pain related factors would be related to LRJT in the affected hand of participants with wrist/hand pain. In an observational cross-sectional study, sixty-one participants with wrist/hand pain participated in a study assessing motor imagery ability, cognitive (Stroop test), sensory (Two-Point Orientation Discrimination, pressure pain thresholds), motor (grip strength, Purdue Pegboard Test), and pain related measures (West Haven Yale Multidimensional Pain Inventory) as well as disability (Disability of the Arm, Shoulder and Hand). Multiple linear regression found Stroop test time and motor imagery ability to be related to LRJT performance. Tactile acuity, motor performance, participation in general activities, and the taking of pain medications were predictors of LRJT accuracy in the affected hand. Participants who took pain medications performed poorly in both LRJT accuracy (p=0.001) and reaction time of the affected hand (p=0.009). These participants had poorer cognitive (p=0.013) and motor function (p=0.002), and higher pain severity scores (p=0.010). The results suggest that the LRJT is a complex mental task that involves cognitive, sensory, motor, and behavioural processes. Differences between persons with and without pain and improvement in LRJT performance may be attributed to any of these factors and should be considered in rehabilitation research and practice utilizing this task.
- Published
- 2018
- Full Text
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46. Use of bilaminar grafts as life-saving interventions for severe burns: A single-center experience.
- Author
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Efanov JI, Tchiloemba B, Duong A, Bélisle A, Izadpanah A, Coeugniet E, and Danino MA
- Subjects
- Activities of Daily Living, Adult, Aged, Cicatrix, Female, Humans, Male, Middle Aged, Patient Satisfaction, Retrospective Studies, Skin, Surveys and Questionnaires, Transplantation, Autologous methods, Treatment Outcome, Young Adult, Burns surgery, Organ Culture Techniques methods, Skin Transplantation methods
- Abstract
Background: Skin coverage remains a significant hurdle in large-sized burns. Recent advances have allowed to grow Bilaminar Cultured Skin Autografts (BCSGs) from patients' own donor sites. The aim of this study was to report long-term outcomes in patients with large-sized burns having received BCSGs., Methods: Nine patients received BCSGs from January 2010 to May 2015. Except one patient who died during hospitalization, all patients were contacted. Four agreed to partake in the study. Patients were tested with the Vancouver Scar Scale (VSS), QuickDASH questionnaire and Burn Specific Health Scale (BSHS). Incisional biopsies of BCSGs were compared with patients' autografts., Results: From nine patients, mean age was 40 years and mean TBSA was 70.3%. For the four patients included, score averaged was 2.25 on the VSS, 29.5 on QuickDASH, 36/36 for psychosocial items and 63/84 for functional abilities on the BSHS. Compared with autografts, BCSGs demonstrated better pliability VSS and functionality. Biopsies showed no evidence of malignancy or atypical changes, but areas of hyperpigmentation., Conclusion: This is the first report investigating the long-term outcome of a newly developed BCSG. BCSGs demonstrated comparable results with patients' autografts, functional outcomes on self-reported questionnaires and excellent psychological states. Precaution given the extensive unexpected hyperpigmentation must be taken and a randomized controlled study is underway., (Copyright © 2018 Elsevier Ltd and ISBI. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
47. Contribution of patient-advisors during rehabilitation for replantation of digits improves patient-reported functional outcomes: A presentation of concept.
- Author
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Efanov JI, Papanastasiou C, Arsenault J, Moreau M, Pomey MP, Higgins J, and Danino MA
- Abstract
Clinical approach to surgical patients has evolved to include previous patients as part of the treating team in the role of "patient-advisors". Knowing that compliance to rehabilitation protocols is significant for a successful functional hand replantation, we set out to quantify functional patient-reported outcomes in individuals enrolled in a Patient-Advisor Program (PAP). We performed a prospective cohort pilot study of all patients admitted for a finger replantation between July 2015 to January 2016. All patients were offered to partake in the PAP, or else they would constitute the control group. Primary endpoints were functional outcomes as reported by patients at 6-8weeks and 4-6months of follow-up. Secondary endpoints were patient-reported pain and quality of life questionnaires. In total, 62 patients were admitted for finger replantation in the studied period, in which 50 agreed to participate in the study, including 7 in the patient-advisors group and 43 in the control group. Patients from the patient-advisors group fared better on mean scores of the Disabilities of the Arm, Shoulder and Hand than controls (29.6 vs 34.8 respectively at 4-6months). Improvements in the McGill Pain Questionnaire were also greater in the studied group (19.9 vs 33.3 at 4-6months). Replantation patients benefiting from the PAP demonstrated superior functional outcomes on self-reported questionnaires, which could be explained by a better understanding of rehabilitation protocols and compliance when previous patients are active members of the treating team., (Copyright © 2018 SFCM. Published by Elsevier Masson SAS. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
48. Capsular Biofilm Formation at the Interface of Textured Expanders and Human Acellular Dermal Matrix: A Comparative Scanning Electron Microscopy Study.
- Author
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Danino MA, Efanov JI, Dimitropoulos G, Moreau M, Maalouf C, Nelea M, Izadpanah A, and Giot JP
- Subjects
- Adult, Aged, Breast Implantation methods, Breast Implants, Female, Humans, Middle Aged, Pilot Projects, Prospective Studies, Tissue Expansion methods, Acellular Dermis microbiology, Biofilms, Breast Implantation instrumentation, Microscopy, Electron, Scanning, Tissue Expansion instrumentation, Tissue Expansion Devices microbiology
- Abstract
Background: Despite benefits in reducing capsular contractures, textured implants have been associated with significant pitfalls, such a propensity for biofilm formation. Few studies have investigated whether the use of acellular dermal matrix on textured implants produces similar findings. This study aims to characterize biofilm formation at the capsular-acellular dermal matrix interface with scanning electron microscopy., Methods: The authors performed a prospective observational pilot study in patients undergoing two-stage expander-to-permanent implant exchange. Patients were inflated with Biocell or Siltex expanders, and specimens from the capsular-pectoralis interface and capsular-acellular dermal matrix interface were obtained and examined under scanning electron microscopy for capsular ingrowth and biofilm formation using the Van Herdeen Biofilm Grading System and the Biofilm Thickness Grading Scale., Results: Nine patients including 14 breasts (28 capsular samples in total) were examined. Thick biofilm formation was observed in all specimens from the capsular-acellular dermal matrix interface with Biocell and 25 percent of capsule-pectoralis interface, whereas no biofilm formation was found in Siltex implants. For Biocell implants, a significant difference in biofilm coverage between the upper and lower poles was observed using the Van Herdeen Biofilm Grading System (p = 0.0028) and the Biofilm Thickness Grading Scale (p = 0.0161)., Conclusions: Biocell implants produce a significant rate of biofilm formation over acellular dermal matrix-covered capsules, which is not present in the muscular region or in Siltex implants. Further randomized controlled trials will further elucidate the clinical impact of using acellular dermal matrices with macrotextured implants., Clinical Question/level of Evidence: Therapeutic, IV.
- Published
- 2018
- Full Text
- View/download PDF
49. Duration and cessation characteristics of heparinization after finger replantation: A retrospective analysis of outcomes.
- Author
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Efanov JI, Khriguian J, Cassier S, Boghossian E, Harris PG, Bou-Merhi J, and Danino MA
- Subjects
- Adolescent, Adult, Aged, Anticoagulants therapeutic use, Drug Administration Schedule, Female, Follow-Up Studies, Graft Survival, Heparin therapeutic use, Humans, Infusions, Intravenous, Male, Middle Aged, Postoperative Care methods, Retrospective Studies, Thrombosis etiology, Treatment Outcome, Young Adult, Amputation, Traumatic surgery, Anticoagulants administration & dosage, Finger Injuries surgery, Heparin administration & dosage, Postoperative Complications prevention & control, Replantation, Thrombosis prevention & control
- Abstract
Background: To prevent postoperative thrombosis, indications for anticoagulation in finger replantation have been described, but no consensus has yet been found for cessation protocols. The aim of this study is to investigate cessation methods of intravenous anticoagulation after finger replantation., Methods: A retrospective review of all patients treated for a finger replantation between December 2014 and July 2016 was performed. Only those who required postoperative treatment with intravenous heparin were extracted. Primary outcome was survival of finger at hospital discharge and data collection focused on postoperative anticoagulation regimens., Results: 108 patients with replantation were treated with intravenous heparin and included in the analysis. When anticoagulated, survival rate was 60% (n = 65) at hospital discharge, wherein arterial and venous thrombosis accounted for 60 and 40% respectively. Descriptive analysis failed to demonstrate an increase in failure rates when tested for duration of intravenous heparin, fixed or variable infusion rates of anticoagulation and need for vascular grafts. However, there was a 2.8-fold (P = .009) increase in the survival rate with progressive weaning of anticoagulation rather than abrupt discontinuation. Subgroup analysis demonstrated similar findings when considering arterial thrombosis alone (OR 5.2, P = .012), but did not show any significant difference for venous thrombosis (OR 1.7, P = .344)., Conclusions: Progressive tapering of intravenous heparin is associated with an increased survival rate after finger replantation, particularly for arterial thrombosis. Further prospective and randomized trials are necessary to elucidate the optimal duration, method of infusion and indications for vascular grafts., (© 2017 Wiley Periodicals, Inc.)
- Published
- 2018
- Full Text
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50. Do Bacteria and Biofilm Play a Role in Double-Capsule Formation around Macrotextured Implants?
- Author
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Danino MA, Nizard N, Paek LS, Govshievich A, and Giot JP
- Subjects
- Adult, Breast Implantation instrumentation, Breast Implantation methods, Female, Foreign-Body Reaction pathology, Humans, Microscopy, Electron, Scanning, Middle Aged, Postoperative Complications pathology, Prospective Studies, Tissue Expansion instrumentation, Biofilms, Breast Implants microbiology, Foreign-Body Reaction microbiology, Postoperative Complications microbiology, Tissue Expansion Devices microbiology
- Abstract
Background: The double capsule is a complication mostly described in aggressive macrotextured implants. Mechanical shear stress applied onto an immature periprosthetic capsule has been linked to their formation. The authors aim to demonstrate the role of bacterial phenotype and biofilm in the development of the double capsule., Methods: Seven double capsules formed at the interface of macrotextured breast expander implants were studied using scanning electron microscopy. Two samples for each surface of the inner capsule layer (the prosthesis interface and the intercapsular space) were analyzed for bacteria cell size, bacterial density, and biofilm deposition., Results: Although all routine bacterial cultures were negative, the prosthesis interface had both higher bacteria load and biofilm deposition compared with the intercapsular space (Mann-Whitney U test, p = 0.004 and p = 0.008, respectively). Moreover, bacteria cell sizes were significantly smaller at the prosthesis interface in six of seven samples. Comparison of bacteria density and biofilm dispersion showed an increase of biofilm extracellular matrix deposition over 2000 cells/mm (linear regression, p = 0.0025). These results indicate a common trend among bacteria species., Conclusions: Bacterial expression between the different surfaces of the double capsule displays significant differences; bacteria at the prosthesis interface are mostly in a biofilm state, whereas they demonstrate a planktonic phenotype at the intercapsular space. When a sufficient amount of bacteria are present at a specific location, quorum sensing may trigger a biofilm phenotypic switch in planktonic bacteria cells. Biofilm formation may alter capsule formation through immune response, thereby weakening capsule strength and facilitating extracellular matrix delamination and double-capsule formation., Clinical Question/level of Evidence: Therapeutic, V.
- Published
- 2017
- Full Text
- View/download PDF
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