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We present an innovative approach that combines a unique real‐time data set documenting absolute dissolution rates of a calcite crystal with an original reactive transport model tailored to the analysis of the dynamics of nano‐scale mineral dissolution processes. Providing robust and physically based fundamental understanding on the kinetics of mineral dissolution is at the core of various geo‐engineered strategies to quantify chemical weathering patterns across diverse spatial and temporal scales. Here, we rely on data obtained through Atomic Force Microscopy. We provide a mathematical framework to describe three‐dimensional dynamics of the mineral surface topography, and show convergence of the numerical approach for vertical grid spacing down to sub‐nm resolution. Plain Language Summary: We focus on some fundamental aspects related to modeling of mechanisms underpinning chemical weathering of minerals. The latter is a ubiquitously active phenomenon driving the Earth system evolution. It underpins a variety of physico‐chemical processes that are at the core of various geo‐engineered strategies for sustainable development, including the assessment of the role of underground storage of carbon dioxide or geothermal energy in environmental stewardship. Here, we propose an innovative approach that combines for the first time a reactive transport model with a unique real‐time data set documenting absolute calcite dissolution rates. Experimental observations correspond to high‐resolution (i.e., horizontal and vertical resolution of 19.5 and ∼0.1 nm, respectively) in‐situ Atomic Force Microscopy data obtained across a calcite sample subject to dissolution. Our original reactive transport model is designed to assist quantitative appraisal of the ensuing mineral surface topography. To combine these two powerful techniques, we provide a mathematical framework for the representation of the evolution (in space and time) of the mineral surface topography, and document the robustness of the numerical approach through a convergence analysis for vertical grid spacing down to sub‐nm resolution. Key Points: We propose a novel combination of an original reactive transport model with a unique data set documenting absolute calcite dissolution ratesWe provide a sound mathematical framework to describe three‐dimensional dynamics of mineral surface topographyWe document convergence of the numerical approach for vertical grid spacing down to sub‐nm resolution [ABSTRACT FROM AUTHOR]

This work is framed within the topic of microbially enhanced carbon mineralization: biological catalysts are utilized to alter reaction rates and enhance carbon mineralization in the context of CO 2 storage in highly reactive minerals formations. We propose a micro-continuum Eulerian formulation of coupled flow and bio-geochemical reactive transport at the pore-scale, in which the reactive transport model is fully coupled with a biomass-nutrient growth model treated with Monod's equation. In order to assess the role of biological catalysts in enhancing carbon mineralization, we then present simulations results and sensitivity studies of an application case of carbon mineralization in an idealized porous geometry with and without biomass growth at conditions relevant to CO 2 storage in ultramafic rocks. Results clearly highlight the role of the biomass in enhancing the pH of the aqueous solution, a process called bioalkalinization , thereby leading in a highly non-linear way to enhanced calcite precipitation, resulting in an interesting potential methodology for CO 2 immobilization. • We study subsurface biomineralization as a potential method for CO 2 storage. • We propose a pore-scale model of coupled flow and bio-geochemical reactive transport. • We present simulation results of a relevant application case of biomineralization. • Biological catalysts enhance carbon mineralization by increasing the local pH. • The enhanced precipitation depends on the mass ratio of enzyme urease to biofilm. [ABSTRACT FROM AUTHOR]

The issue of international migration and health has received increased attention since its rise due to empirical studies on the immigrant paradox. Less examined has been research focused on countries in the Global South with growing immigrant population share and contentious debates on implications. Using data from the longitudinal National Income Dynamics Study (NIDS) (2008-2017) and panel logistic regression this study focused on evaluating whether reported physical health, mental health, and life satisfaction are all associated with immigrant status in South Africa. Accounting for several sociodemographic factors, results emanating from analysis showed no significant evidence of association between overall immigration status and self-reported health or life satisfaction. This however did not apply to depression as immigrants were found to be significantly less likely to report depressive level scores. Interestingly, preference to migrate was also found to be significantly associated with depression, and life satisfaction. Further evaluation amongst racial groups showed that African immigrants are also significantly more likely to report better health than non-immigrant counterparts. This study argues for the need of contextualisation of the immigrant paradox as evidence thereof varies dependent on specific outcomes and communities. The importance of other associated social determinants of wellbeing is also highlighted since gender, race, age, class, education, relationship status, location, and behavioural factors were found to be significantly associated with wellbeing. Policies should thus be aimed at reducing structural inequalities in broad whilst also introducing social programmes that reduce behavioural or lifestyle activities that have negative implications on wellbeing., Competing Interests: Author declares that none have commercial associations (e.g. consultancies, stock ownership, equity interest, patent/licensing arrangement etc.) that might pose a conflict of interest in connection with the submitted article, (© 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.)

Background: Reconstruction of the abdominal wall in patients with prune-belly syndrome (PBS) following previous intra-abdominal procedures is a challenging problem with a high incidence of revision due to persistent bulging or herniation. The abdominal wall flaccidity not only produces a severe psychological and aesthetic discomfort for the patient but often determines functional disabilities, including inability to cough properly, impaired bowel and bladder function, and delay in posture and balance., Methods: The authors describe three cases of reconstruction of abdominal wall using a modified double-breasted abdominoplasty fascial plication with additional acellular dermal matrix interposition and review the literature for innovations in the use of abdominal repair for reconstruction of these difficult cases., Results: Three children with PBS at a mean age of 7.3 years achieved successful reconstruction of the abdominal wall, using the modified double-breasted abdominoplasty fascial plication with acellular dermal matrix interposition. Patients underwent previous procedures, including orchiopexy in two patients and bilateral nephrectomy in one patient. No postoperative complications have been found, apart from superficial skin dehiscence along the abdominal incision treated conservatively in one child. At mean follow-up of 42 months (range 28-56 months), no patient presented incisional hernia, persistent or recurrent fascial laxity with abdominal bulging. All patients achieved significant aesthetic and functional improvements, including children's ability to cough, spontaneous gain of abdominal tonus, balance, and ambulation., Conclusion: Modification of the original vertical, two-layer plications of the deficient abdominal interposing biological mesh has the purpose of improving strength, aesthetics, and function of the abdominal wall in pediatric patients with PBS., Competing Interests: The authors have no financial interest to declare in relation to the content of this article., (Copyright © 2024 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)

The overwhelming post-splenectomy infection (OPSI) is a feared late complication of splenectomy, with high morbidity and a mortality rate of up to 50%. Although the management of this syndrome is the duty of clinical physicians, the interest of plastic surgeons in OPSI is related to the injury that can occur in tissues with an end circulation, such as the limb extremities, nasal tip, and lips. In the management of OPSI, surgical techniques are not highlighted. The role of the plastic surgeon can be fundamental for the prevention of further extension of the necrotic tissue, improving as much as possible the vascularization around it. Moreover, a critical role in the management of OPSI is avoiding superinfection of the necrotic areas by combining different techniques and methods, such as surgical debridements, negative pressure wound therapy, and conservative treatment. Last but not least, functional and aesthetic restoration of the injured parts is of paramount importance for the final outcome. In this article, we describe the management of two unvaccinated patients with necrosis of the extremities after OPSI., Competing Interests: The authors have no financial interest to declare in relation to the content of this article. Disclosure statements are at the end of this article, following the correspondence information., (Copyright © 2023 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)

A 37-year old male patient with a right-hand firework injury. An extreme hand reconstruction was performed. The second and third rays were sacrificed enlarging the first space. The diaphysis of the second metacarpal bone became a tubular graft to reconstruct the fourth metacarpal. The thumb consisted only in the first metacarpal bone. The result was satisfactory, according to the wishes and needs of the patient, a three-finger hand with an opposable thumb, obtained in only one surgical treatment and without using free flaps. The concept of an "acceptable hand" is related to the surgeon's and patient's opinions.

Objective: To investigate whether the use of systemic heparin could be useful for vein microvascular anastomoses in microsurgical training on rats., Design: Femoral end-to-end venous anastomoses were performed on both thighs of 40 wistar rats by two microsurgery trainees from October 2018 to February 2019 (80 anastomoses in total). We divided the rats into 2 groups of 20 specimens (40 femoral end-to-end anastomoses) each: group A received no heparin administration; group B received subcutaneous systemic heparin administration before starting dissection. We compared both vein patency after the procedures., Results: Patency tests showed no difference between the two groups after 5 minutes. At the delayed test after 120 minutes, vein patency was significantly better in the systemic heparin group (85,0% vs 55,0%). Even though both trainees judged practicing on both groups very instructive, they found useful performing anastomoses when heparin was administrated., Conclusion: We suggest including the use of systemic heparin in microsurgery training programs, especially for the beginners. Systemic heparin administration in rat models is educative for trainees.

Background: Filarial lymphedema (FLE) is the most common cause of secondary lymphedema, with endemic prevalence in developing countries. FLE traditionally has been managed with antibiotics and decongestive therapy (DCT) in the early stage or excisional surgery at the late stage. Results of vascularized lymph node transfer (VLNT) in postoncologic lymphedema have been encouraging, and VLNT is a widely accepted surgical treatment. The authors advocate that the combined treatment of antibiotics, DCT, and vascularized submental lymph node (VSLN) transfer could produce objective and subjective improvement of early-stage lower limb FLE., Methods: Between January of 2019 and January of 2020, patients with early-stage lower-limb FLE who underwent VLNT were retrospectively reviewed. VLNT was harvested from the submental region in all patients. Outcomes were assessed using volume improvement, frequency of cellulitis, and lymphoscintigraphy, along with subjective scoring questionnaire., Results: Three men and one woman with an average age of 27 years (range, 25 to 29 years) were included. Two patients presented bilateral lymphedema. One patient was lost at 3-month follow-up and not included in the analysis. Patients showed an initial decrease in circumferential measurements after antibiotics and DCT of 2074 ± 471 cc (39% ± 9%). At a mean follow-up of 12.3 ± 6.2 months, further improvement of limb volume of 2389 ± 576 cc (45% ± 10%) was achieved following VSLN transfer. Lymphoscintigraphy demonstrated dye uptake by the VLNT with reduced dermal backflow and none of the patients had episodes of postoperative cellulitis. Patients reported excellent outcome on subjective scoring (average score, 9 ± 1) and returned to their daily activities without wearing compression garments., Conclusion: The authors' early experience showed that VSLN transfer may represent an effective treatment option in the multimodal approach to early-stage lower limb FLE., (Copyright © 2022 by the American Society of Plastic Surgeons.)

Primary lymphomas of peripheral nerves (PLPNs) are extremely rare and most commonly reported in lumbar nerves and have been found in only five cases in the upper extremities. We describe two patterns of presentation focusing on clinical, radiological, and pathological findings of two patients affected by primary multifocal lymphoma of the ulnar nerve without systemic involvement or other medical conditions. We report a case of extraneural lymphoma in a 72-years-old (patient #1) and a case of intraneural lymphoma in a 45-years old woman (Patient #2). Magnetic resonance imaging and ultrasound findings were similar to Peripheral Nerve Sheath Tumors (PNST). Surgical exploration and excision were performed. Morpho pathological results revealed in both cases a diffuse large B-cell non-Hodgkin lymphoma. In patient #1, the disease relapsed after only 4 months with brachial plexus involvement. The patient died about 10 months after the onset of symptoms. Patient #2 did not have post-surgical sensory or motor deficit and follow up at 6 years did not show recurrence or any other localizations. PLPN is a rare and challenging condition and is frequently misdiagnosed. PLPNs could have an intraneural or an extraneural pattern. As peripheral neuropathy may be caused by a nervous involvement by a lymphoma, in patients with atypical lesions, a complete preoperative imaging should be acquired.

Due to the spread of the coronavirus disease 2019 pandemic, an increasing number of ill patients have been admitted to intensive care unit requiring mechanical ventilation. Although prone positioning is considered beneficial, long periods in this position may induce important complications, including pressure ulcers in high-risk and uncommon body areas. We report five cases of pressure ulcer necrosis of the chin in coronavirus disease 2019 patients as a consequence of mechanical ventilation in prone positioning using autologous fat grafting (AFG) as a secondary technique. A series of five patients with secondarily-healed chin necrosis treated by AFG between February and June 2020 were reviewed. All patients had been treated initially with surgical debridement followed by conservative treatment. Secondary AFG was performed to reduce patient's pain, improve chin contour-projection, and minimize cosmetic sequelae and scarring. Patient satisfaction was assessed using a five-point Likert scale (0-4). Vancouver scale was used to evaluate the chin scars clinically. The average amount of fat injected into the chin area was 8.1 ± 2.0 ml. At 6-month follow-up, all patients were mostly satisfied (average Likert-scale 3.2 ± 0.4). Based on the Vancouver scale, improvement of the chin scar from 9.5 ± 0.8 to 4.7 ± 0.8 was found. We report a positive experience with secondary AFG for correction of painful and unaesthetic scarring and contour abnormality following surgical debridement and secondary-intention healing of chin pressure ulcers., Competing Interests: Disclosure: The authors have no financial interest to declare in relation to the content of this article., (Copyright © 2022 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)

Background and Aim of the Work: The authors reported a personal case series of open release of stiff wrists performed after previous internal osteosynthesis of distal radius fractures., Methods: From a series of 16 patients operated by a single surgeon, 12 were evaluated at a mean 7.1 years follow-up (range 2.25 to 19 years), while 4 were lost at follow-up. The ROM in flexion-extension achieved at the final control was measured with a goniometer and compared to that recorded before surgery. The PRWHE questionnaire was administred at the last follow-up., Results: The mean flexion improved from 25.5° to 42.3° and the extension from 15.75° to 43°. The mean PRWHE value was 32.9., Conclusions: Although arthroscopic release is increasingly used in clinical practice for its minimal invasinevess and warranty of fast recovery, open arthrolysis in post-traumatic stiff wrists appears to be an effective procedure, adaptable to all types of stiffness, that lets get good long lasting functional results.

Background and Aim: More than 250 000 women estimated to be diagnosed with breast cancer in the USA every year. Mastectomy is primary treatment for more than a third of those with early-stage disease. Most of the patients undergoing mastectomy receive breast reconstruction. A number of. Surgical techniques have been described to reconstruct the breast. With autologous tissue breast reconstruction, the plastic surgeon uses patient's own tissues, taken from a different part of the body where there is an excess of fat and skin. Deep inferior epigastric perforator (DIEP) flap is the autologous breast reconstruction technique of choice in our department due to long lasting results, low donor site morbidity and positive patient reported outcomes have been described.   Case Report: We present the case of a 42-year-old woman who underwent neoadjuvant chemotherapy followed by left breast simple mastectomy, axillary lymph-nodes dissection and later adjuvant radiation therapy (RT). After conclusion of RT a DIEP flap breast reconstruction was performed. Nine-hours after the operation, signs of acute venous congestion were noted. The venous congestion was treated by a combined surgical and medical approach based on pedicle discharge and ICU resuscitation protocol. After take back surgery, the patient was tightly monitored in the intensive care unit where intravenous heparin infusion and leech therapy were performed for 2 days. Flap congestion resolved completely, and the patient was discharged.   Conclusions: Venous congestion is very difficult to treat due to its potential multifactorial nature. The most important step is to recognize this kind of emergency because irreversible microvascular damages will develop in 6-8 hours. Because of multiple causes of venous congestion a timely multidisciplinary approach is mandatory, to maximize flap salvage and success rates.

Introduction: Skin ulcers (SU) represent one of the most frequent manifestations of systemic sclerosis (SSc), occurring in almost 50% of scleroderma patients. SSc-SU are often particularly difficult to treat with conventional systemic and local therapies. In this study, a preliminary evaluation of the role and effectiveness of blue light photobiomodulation (PBM) therapy with EmoLED ® in the treatment of scleroderma skin ulcers (SSc-SU) was performed., Methods: We retrospectively analyzed 12 consecutive SSc patients with a total of 15 SU on finger hands. All patients were treated with adequate systemic therapy and local treatment for SU; after a standard skin ulcer bed preparation with debridement of all lesions, EmoLED ® was performed. All patients were locally treated every week during 2 months of follow-up; SU data were collected after 4 weeks (T4) and 8 weeks (T8). Eight SSc patients with comparable SU were also evaluated as controls., Results: The application of EmoLED ® in addition to debridement apparently produced faster healing of SU. Complete healing of SU was recorded in 41.6% cases during EmoLED ® treatment. Significant improvements in SU area, length, and width, wound bed, and related pain were observed in EmoLED ® patients from T0 to T8. Control subjects treated with standard systemic/local therapies merely showed an amelioration of SU area and width at the end of the follow-up. No procedural or post-procedural adverse events were reported., Conclusions: The positive clinical results and the absence of side effects suggest that EmoLED ® could be a promising tool in the management of SSc-SU, with an interesting role to play in the healing process in addition to conventional systemic and local treatments., (© 2022. The Author(s).)

Background: Safety of reconstructive microsurgery in elderly patients is still a topic of debate, because no conclusive evidence exists that provides indications and risk evaluation in elderly patients. The purpose of this study, which the Italian Society for Plastic, Reconstructive, and Aesthetic Surgery (SICPRE) has promoted, is to evaluate the safety and the complication risk of elective reconstructive microsurgery in elderly patients as well as to identify patient- or procedure-related risk factors. The secondary aim is to evaluate the predictive role for complications of the Geriatric 8 score (G8)., Methods: A total of 194 consecutive patients from 18 centers, aged 65 or older, who received an elective microsurgical flap between April 2018 and April 2019 were prospectively evaluated. Patient-related, treatment-related, and outcomes data were recorded and statistically analyzed through multiple-adjusted logistic regression models., Results: Our study showed an increased risk of complications and a longer hospitalization in patients aged ≥75 years with the American Society of Anesthesiologists (ASA) score ≥3 (or G8 score ≤11) as compared to patients >65 years of age and <75 years of age who undergo reconstruction with a microsurgical flap. Instead, flap survival did not significantly vary with age, but was associated only with ASA score ≥3 (or G8 score ≤11) and surgeries that last longer than 480 min; however, flap survival (92.3%) was slightly lower than that commonly reported for in the general population., Conclusions: Reconstructive microsurgery in the elderly is generally safe. The ASA score is easier and quicker than the G8 score and equally useful for risk stratification., (Copyright © 2021 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Systemic sclerosis is a connective tissue disease with cutaneous involvement. Clinical manifestations result from the balance of inflammations/autoimmunity process and fibrogenesis. Patients suffer from skin ulcers, non-ulcerative lesions including digital pitting scars, telangiectasias, subungual hyperkeratosis, abrasions, fissures, and subcutaneous calcinosis. A review about the pathophysiology of the disease, the physical examination of the patients, the instrumental assessment, and possible treatments is performed., Competing Interests: The authors declares that there is no conflict of interest regarding the publication of this paper., (© 2021 The Authors.)

Purpose: This retrospective study analyses the effect performing veins anastomoses before arteries anastomoses in digital replantation., Patients and Methods: 38 adult patients with replantation of 12 thumbs and 39 fingers, in whom the veins anastomoses were performed prior to the arteries anastomoses, were compared with 29 patients with replantation of 9 thumbs and 30 fingers, in whom the arteries anastomoses were done first, with respect to the survival rate, total active motion, grip strength, and duration of the replantation., Results: There was no significant difference between the two groups with respect to the survival rates, total active motion, and grip strength, while the duration of the replantation was significantly shorter in patients, in whom the veins anastomoses were performed prior to the arteries anastomoses (2 hours and 50 minutes versus 3 hours and 42 minutes; p < 0.001)., Conclusion: Performing veins anastomoses before arteries anastomoses in digital replantations reduces the replantation time significantly without influencing the survival rate and the clinical outcome., Competing Interests: Each author declares that he or she has no commercial associations (e. g. consultancies, stock ownership, equity interest, patent/licensing arrangement etc.) that might pose a conflict of interest in connection with the submitted article., (Thieme. All rights reserved.)

Introduction: Adipose tissue (AT) has become a source of mesenchymal stromal/stem cells (MSC) for regenerative medicine applications, in particular skeletal disorders. Several enzymatic or mechanical procedures have been proposed to process AT with the aim to isolate cells that can be locally implanted. How AT is processed may impact its properties. Thus, we compared AT processed by centrifugation (C-AT) to microfragmentation (MF-AT). Focusing on MF-AT, we subsequently assessed the impact of synovial fluid (SF) alone on both MF-AT and isolated AT-MSC to better understand their cartilage repair mechanisms., Materials and Methods: MF-AT and C-AT from the same donors were compared by histology and qRT-PCR immediately after isolation or as ex vivo cultures using a micro-tissue pellet system. The in vitro impact of SF on MF-AT and AT-MSC was assessed by histological staining and molecular analysis., Results: The main AT histological features (i.e., increased extracellular matrix and cellularity) of the freshly isolated or ex vivo-cultured MF-AT persisted compared to C-AT, which rapidly deteriorated during culture. Based on our previous studies of HOX genes in MSC, we investigated the involvement of Homeobox Protein HOX-B7 (HOXB7) and its target basic Fibroblast Growth Factor (bFGF) in the molecular mechanism underlying the improved performance of MF-AT. Indeed, both these biomarkers were more prominent in freshly isolated MF-AT compared to C-AT. SF alone preserved the AT histological features of MF-AT, together with HOXB7 and bFGF expression. Increased cell performance was also observed in isolated AT-MSC after SF treatment concomitant with enhanced HOXB7 expression, although there was no apparent association with bFGF., Conclusions: Our findings show that MF has a positive effect on the maintenance of AT histology and may trigger the expression of trophic factors that improve tissue repair by processed AT., (© 2021. The Author(s).)

Purpose: Piezoelectric bone surgery was already extensively used in a number of surgical procedures ranging from dental to maxillofacial surgery. The authors aimed to determine whether piezosurgery was suitable and advantageous for performing osteotomies in Hand and Plastic reconstructive surgery., Methods: The authors overviewed a variety of applications for Piezosurgery ® Device, from Mectron, in bone reconstructive surgery with over the last 8 years. An overall number of 156 bone cutting procedures in adults and children was described at the phalanges, metacarpal bones and distal radius level, as well as in bone graft harvesting and bone remodeling following carpal scaphoid nonunion, scapho-lunate bone-ligament-bone reconstruction and fibula free flap in maxillofacial defects., Results: The consolidation rate was 87.5% in scaphoid nonunion grafting and fixation. Bone healing was achieved in all other cases. No intra-operative complications were recorded., Conclusion: Piezosurgery ® allowed high precision in bone cutting as well as custom-made graft and surface roughness were obtained, while preserving nerves, vessels and tendons integrity. The instrument may be handling moved into the surgical space in absence of vibrations, with a clear view onto the bone. The mechanical and biological characteristics of the piezoelectrical effect perfected this technique as an effective and useful instrument in Hand and Plastic surgery. The selective bone cutting properties avoided injuries to the surrounding soft tissues and thermal damage of the bony cells. Best advantages were described in feasibility and flexibility for intra-articular osteotomies, custom-made grafts and reconstructive microsurgical techniques., Competing Interests: Conflict of InterestAll the authors declare they have no financial interests, no commercial associations (e.g., consultancies, stock ownership, equity interest, patent/licensing arrangement, etc.) that might pose a conflict of interest in connection with the submitted article., (© Indian Orthopaedics Association 2021.)

Different options for upper limb reconstruction are described in literature: advancement or rotation flaps, regional flaps and free flaps are the most common. Local and regional flaps can represent the reconstructive options for small defects while large wounds require the use of free flaps or distant pedicled flaps. In case of large wound, the use of free flaps rather than distant pedicle flaps is usually preferred. To choose the best reconstructive option, it is essential for the surgeon to have a general overview about the different methods. In this review the Authors will refer to the most commonly used methods to cover soft tissues injuries affecting the dorsum and the palm of the hand and the forearm (excluding fingers). The aim is to show all flap reconstructive options so as to support the inexperienced surgeon during the management of traumatic injuries of the upper limb., Competing Interests: The authors declares that there is no conflict of interest regarding the publication of this paper., (© 2021 The Authors.)

Breast cancer-related lymphedema (BCRL) represents a global healthcare issue affecting the emotional and life quality of breast cancer survivors significantly. The clinical presentation is characterized by swelling of the affected upper limb, that may be accompanied by atrophic skin findings, pain and recurrent cellulitis. Cardinal principles of lymphedema management are the use of complex decongestive therapy and patient education. Recently, new microsurgery procedures have been reported with interesting results, bringing in a new opportunity to care postmastectomy lymphedema. However, many aspects of the disease are still debated in the medical community, including clinical examination, imaging techniques, patient selection and proper treatment. Here we will review these aspects and the current literature.

Introduction: The authors discuss challenges in extensor function restoration at the finger level following distal posterior interosseous or tendon complex injuries, according to the typologies of lesions or the specific patient requirements., Materials: The authors report on two cases describing challenging resolutions. One patient with EDC lag from zone 6B to 8 requiring FCU prolonged with cadaveric grafts.  One young patient with distal posterior interosseous lesion requiring selective tendon transfers to EPL and EIP to restore selective and autonomous index extension., Results: In both cases the main goals were obtained, achieving high index of patient satisfaction and excellent outcomes with the restoration of the extension of the fingers.  Conclusions: In distal posterior interosseous nerve lesion, high demanding patients may require selective function to restore fine motor skills, such as autonomous index extension. In extensor tendons loss of substance from zone 6 to 8, involving musculotendinous junction proximally and short remnants distally, by-pass tendon transfer prolonged with cadaveric grafts is required. The authors highlight the techniques available as escape plan according to the necessary solutions.

Background: The aim of the present study was to show that the Infection Risk Index (IRI), based on only 3 factors (wound classification, American Society of Anesthesiologists score, and duration of surgery), can be used to standardize selection of infection high-risk patients undergoing different surgical procedures in Plastic Surgery., Methods: In our Division of Plastic Surgery at Modena University Hospital, we studied 3 groups of patients: Group A (122 post-bariatric abdominoplasties), Group B (223 bilateral reduction mammoplasties), and Group C (201 tissue losses with first intention healing). For each group, we compared surgical site infection (SSI) rate and ratio between patients with 0 or 1 risk factors (IRI score 0 or 1) and patients with 2 or 3 risk factors (IRI score 2 or 3)., Results: In group A, patients with IRI score 0-1 showed an SSI Ratio of 2.97%, whereas patients with IRI score 2-3 developed an SSI ratio of 27.27%. In group B, patients with IRI score 0-1 showed an SSI ratio of 2.99%, whereas patients with IRI score 2-3 developed an SSI ratio of 18.18%. In group C, patients with IRI score 0-1 showed an SSI ratio of 7.62%, whereas patients with IRI score 2-3 developed an SSI ratio of 30.77%., Conclusions: Existing infection risk calculators are procedure-specific and time-consuming. IRI score is simple, fast, and unspecific but is able to identify patients at high or low risk of postoperative infections. Our results suggest the utility of IRI score in refining the infection risk stratification profile in Plastic Surgery., Competing Interests: Disclosure: The authors have no financial interest to declare in relation to the content of this article. No funding is reported for the present study., (Copyright © 2021 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.)

Background: Nonresorbable substances are still injected to enhance soft-tissue volumes and fill subcutaneous defects. The minimally invasive intralesional laser treatment can remove foreign substances and the inflammatory reaction, eventually leaving depression and scar tissue in the treated area. Fat grafting can restore volume loss and improve scar tissue., Methods: From March of 2010 to February of 2017, 33 patients were studied. All of them had suffered from inflammatory reactions to permanent facial fillers and had been treated with the 808-nm diode laser at the authors' institution. The evacuation of material had left facial asymmetry and visible depression. To restore facial aesthetic units, fat grafting was performed. The minimum follow-up was 6 months., Results: Volume restoration was recognized (according to the Global Aesthetic Improvement Scale) as significantly improved in 22 patients, moderately improved in eight patients, and slightly improved in three patients. Improvement in atrophic and scarred tissues (with an apparent thickening of the skin or even elimination of scars) was also assessed with the following results: 25 patients were very much improved and eight were moderately improved., Conclusions: This is the first study on filler-induced complications of the face treated by intralesional laser treatment followed by lipofilling. A systematic approach to volume restoration is proposed to patients who had filler removal of the face. There was a high degree of patient satisfaction with this technique., Clinical Question/level of Evidence: Therapeutic, IV., Competing Interests: Disclosure:None of the authors has a financial interest in any of the products or devices mentioned in this article. The authors declare no conflict of interest., (Copyright © 2021 by the American Society of Plastic Surgeons.)

Since the introduction of fibula flap as a reconstructive technique, an evolution of indications has been observed. Our first report of a traumatic mandibular reconstruction using fibula flap was in 1992. The vast majority of indications for surgery, are: malignant tumors, benign neoplasms, osteoradionecrosis and traumas. Nevertheless, extended indications have been described such as the treatment of dentoalveolar defect without bone discontinuity or reconstruction of maxilla defect up to type III (A and B), according to Cordeiro's classification. Unusual indications include cleft palate malformations with bone discontinuity less than 6 cm. Moreover, a particular attention should be focus on fibula flap harvest with more innovative technologies than traditional use of monopolar or bipolar and their advantages in pre and postoperative management., (© 2021 The Authors.)

We present a case of a man with a giant cutaneous horn over his frontal region. This case has been presented for the size of the lesion, due to delayed treatment, and to illustrate the reasons why the growth of this lesion has been possible in a western country, in the 21st century. It was a solitary, not painful lesion which caused significant aesthetic problems. The diagnosis was based on an ultrasonographic study and the treatment of choice was a surgical excision. This case is an opportunity to review the literature about the cutaneous horns, to talk about the main causes of delayed diagnosis and treatment of cutaneous lesions and, to define the role of the specialist in the assessment of emotions and patient support., Competing Interests: No conflict of interest., (© 2020 The Authors.)