13 results on '"Schubert W"'
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2. HOMOGRAFT REJECTION IN CHILDREN WITH CONGENITAL IMMUNOLOGICAL DEFECTS
- Author
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SCHUBERT, W. K., primary, FOWLER, R., additional, MARTIN, LESTER W., additional, and WEST, CLARK D., additional
- Published
- 1960
- Full Text
- View/download PDF
3. Interfacility Transfer Guidelines for Isolated Facial Trauma: A Multidisciplinary Expert Consensus.
- Author
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Pontell ME, Steinberg JP, Mackay DR, Rodriguez ED, Strong EB, Olsson AB, Kriet JD, Kelly KJ, Ochs MW, Taub PJ, Desai SC, MacLeod S, Susarla S, Tollefson TT, Schubert W, Drolet BC, and Golinko MS
- Subjects
- Consensus, Delphi Technique, Humans, Trauma Centers, Emergency Medical Services, Facial Injuries surgery
- Abstract
Background: The objective of this study was to develop guidelines for the transfer of patients with isolated craniomaxillofacial trauma., Methods: A national, multidisciplinary expert panel was assembled from leadership in national organizations and contributors to published literature on facial reconstruction. The final panel consisted of five plastic surgeons, four otolaryngologist-head and neck surgeons, and four oral and maxillofacial surgeons. The expert panelists' opinions on transfer guidelines were collected using the modified Delphi process. Consensus was predefined as 90 percent or greater agreement per statement., Results: After four Delphi consensus building rounds, 13 transfer guidelines were established, including statements on fractures of the frontal sinus, orbit, midface, and mandible, as well as soft-tissue injuries. Twelve guidelines reached consensus., Conclusions: The decision to transfer a patient with craniomaxillofacial trauma to another facility is complex and multifactorial. While a percentage of overtriage is acceptable to promote safe disposition of trauma patients, unnecessarily high rates of secondary overtriage divert emergency medical services, increase costs, delay care, overload tertiary trauma centers, and result in tertiary hospital staff providing primary emergency coverage for referring hospitals. These craniomaxillofacial transfer guidelines were designed to serve as a tool to improve and streamline the care of facial trauma patients. Such efforts may decrease the additional health care expenditures associated with secondary overtriage while decompressing emergency medical systems and tertiary emergency departments., Competing Interests: Disclosure : The authors have no relevant disclosures or conflicts of interest to report. No financial support was received for this project., (Copyright © 2022 by the American Society of Plastic Surgeons.)
- Published
- 2022
- Full Text
- View/download PDF
4. Evidence-based medicine: Mandible fractures.
- Author
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Morrow BT, Samson TD, Schubert W, and Mackay DR
- Subjects
- Evidence-Based Medicine, Global Health, Humans, Mandible anatomy & histology, Mandible surgery, Mandibular Fractures diagnosis, Mandibular Fractures epidemiology, Mandibular Fractures etiology, Preoperative Care methods, Fracture Fixation methods, Mandibular Fractures surgery
- Abstract
Learning Objectives: After studying this article, the participant should be able to: 1. Describe the anatomy and subunits of the mandible. 2. Review the cause and epidemiology of mandible fractures. 3. Discuss the preoperative evaluation and diagnostic imaging. 4. Understand the principles and techniques of mandible fracture reduction and fixation., Summary: The management of mandibular fractures has undergone significant improvement because of advancements in plating technology, imaging, and instrumentation. As the techniques in management continue to evolve, it is imperative for the practicing physician to remain up-to-date with the growing body of scientific literature. The objective of this Maintenance of Certification article is to present a review of the literature so that the physician may make treatment recommendation based on the best evidence available. Pediatric fractures have been excluded from this article.
- Published
- 2014
- Full Text
- View/download PDF
5. Incorporation of titanium mesh in orbital and midface reconstruction.
- Author
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Schubert W, Gear AJ, Lee C, Hilger PA, Haus E, Migliori MR, Mann DA, and Benjamin CI
- Subjects
- Carcinoma, Squamous Cell complications, Fractures, Bone surgery, Humans, Nose Diseases surgery, Nose Neoplasms complications, Orbit injuries, Soft Tissue Injuries etiology, Titanium, Bone Diseases surgery, Plastic Surgery Procedures, Soft Tissue Injuries surgery, Surgical Mesh, Wounds, Gunshot surgery
- Abstract
Several authors have demonstrated the safety and effectiveness of titanium in orbital reconstruction. One question posed by clinicians is what happens to large pieces of titanium in communication with the paranasal sinuses or nasal-oral-pharyngeal area. This question becomes increasingly relevant as titanium is used to reconstruct extensive defects for which the destruction of bony architecture requires the placement of mesh in proximity to these areas. The objective of this study was to examine the gross and histologic soft-tissue response to large segments of titanium mesh in the setting of orbital and midface reconstruction, particularly when exposed to the nasal-oral-pharyngeal area and paranasal sinuses. In this study, large segments of titanium mesh were used in eight patients to reconstruct orbital and midface defects, with direct communication between the mesh and nasal-oral-pharyngeal area and paranasal sinuses. Four patients had suffered self-inflicted gunshot wounds; as a result, much of their midface was missing, including the inferior and medial orbital floor, maxilla, nose, naso-orbital-ethmoid complex, and hard palate. Extensive sheets of titanium mesh were used to reconstruct their medial and inferior orbital walls, nasal bridge, and maxilla. In the fifth patient, titanium mesh was used to reconstruct the maxilla after resection of a squamous cell carcinoma of the nasolacrimal duct. In the sixth and seventh patients, mesh was used to reconstruct the nasal bridge after severely comminuted nasal fractures resulted in the loss of bone and mucosa. Finally, the eighth patient had titanium mesh used to replace cocaine-induced bone loss involving the left medial orbital floor and wall and part of the maxilla. On gross examination by either endoscopy or direct inspection, all eight patients had rapid soft-tissue incorporation of the titanium mesh. Initial examination typically revealed budding of soft tissue through mesh interstices, followed by progressive incorporation. One patient's mesh was covered in only 15 days. Two patients underwent biopsies of this newly formed soft tissue. One had biopsies performed at 3, 15, and 31 months after the original operation. Biopsy examination at 3 months revealed incorporation of the titanium with fibrous soft tissue covered by ciliated respiratory epithelium, goblet cells, and squamous epithelium with metaplasia. In addition, the dense, acute inflammation present at 3 months evolved into mild, chronic inflammation at 31 months. The second patient had a single biopsy 4 months after secondary orbital reconstruction for delayed enophthalmos. Biopsy examination revealed a fibrous soft-tissue sheath lined by squamous epithelium with metaplasia. Again, mild chronic inflammation was present within the soft tissue. This study provides evidence of titanium's compatibility with soft tissue. The mesh underwent progressive incorporation with soft tissue that was then resurfaced by indigenous cells, including respiratory epithelia and goblet cells. This phenomenon occurred despite communication with the nasal-oral-pharyngeal area and paranasal sinuses.
- Published
- 2002
- Full Text
- View/download PDF
6. Prospective comparison of panoramic tomography (zonography) and helical computed tomography in the diagnosis and operative management of mandibular fractures.
- Author
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Wilson IF, Lokeh A, Benjamin CI, Hilger PA, Hamlar DD, Ondrey FG, Tashjian JH, Thomas W, and Schubert W
- Subjects
- Humans, Prospective Studies, Sensitivity and Specificity, Mandibular Fractures diagnostic imaging, Mandibular Fractures surgery, Tomography, X-Ray Computed methods
- Abstract
This prospective study compared the sensitivity of panoramic tomography (zonography) and helical computed tomography (CT) in diagnosing 73 mandibular fractures in 42 consecutive patients and correlated the results with known surgical findings. The purpose of the study was to determine the optimal radiologic examination for the diagnosis and operative management of mandibular fractures. The attending surgeons' interpretations of panoramic tomograms and helical CT images in the axial plane were compared with the patients' known surgical findings. A series of questions assessed the relative contribution of these two radiologic examinations in formulating an optimal operative plan for each patient. In the 42 patients studied, the sensitivity of helical CT was 100 percent in diagnosing mandibular fractures; this compared with 86 percent (36 of 42) for panoramic tomography, in which significantly more fractures were missed (p = 0.0412). In the six patients with fractures not visualized, the operative management was altered because of the new fracture visualized on helical CT. Of the seven missed fractures, six were in the posterior portion of the mandible. Comparing fracture detection by region, seven fractures found on helical CT were not visualized on panoramic tomography. Helical CT improved the understanding of the nature of mandibular fractures by providing additional information regarding fracture displacement and comminution and by locating injuries missed using panoramic tomography. This study suggests that helical CT alone may be more diagnostic than panoramic tomography alone in evaluating mandibular fractures. Helical CT sufficiently demonstrated details of fractures in 41 of 42 patients; in one patient, the nature of a dental root fracture was better delineated by panoramic tomography.
- Published
- 2001
- Full Text
- View/download PDF
7. Latissimus dorsi myocutaneous flap reconstruction of neck and axillary burn contractures.
- Author
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Wilson IF, Lokeh A, Schubert W, and Benjamin CI
- Subjects
- Adult, Axilla surgery, Child, Child, Preschool, Esthetics, Female, Follow-Up Studies, Humans, Male, Reoperation, Suture Techniques, Treatment Outcome, Axilla injuries, Burns surgery, Cicatrix, Hypertrophic surgery, Contracture surgery, Developing Countries, Neck Injuries surgery, Surgical Flaps
- Abstract
Neck and axillary burn contractures are both a devastating functional and cosmetic deformity for patients and a challenging problem for reconstructive surgeons. Severe contractures are more commonly seen in the developing world, a result of both the widespread use of open fires and the inadequacy of primary and secondary burn care in these vicinities. When deep burns are allowed to heal spontaneously, patients develop hypertrophic scarring of the neck and axillary areas. The back is typically spared, however, remaining a suitable donor site. We have used nine latissimus dorsi myocutaneous flaps in a total of six patients, finding the flaps effective in resurfacing both the neck and the axillary regions after wide release of burn contractures. Before flap mobilization, surgical neck release is often necessary to ensure safe, effective control of the airway in patients with significant neck contractures. Flap bulkiness in the anterior neck region can eventually be reduced by dividing the thoracodorsal nerve. Anchoring the skin paddle to its recipient site through the placement of tacking sutures will also help achieve a more normal anterior neck contour.
- Published
- 2000
- Full Text
- View/download PDF
8. Chest-wall deformity after tissue expansion for breast reconstruction.
- Author
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Sinow JD, Halvorsen RA Jr, Matts JP, Schubert W, Letourneau JG, and Cunningham BL
- Subjects
- Female, Humans, Middle Aged, Prospective Studies, Prostheses and Implants, Thoracic Injuries diagnostic imaging, Tomography, X-Ray Computed, Mammaplasty methods, Thoracic Injuries etiology, Tissue Expansion adverse effects
- Abstract
A prospective longitudinal study of chest-wall deformity after tissue expansion for breast reconstruction was performed in 19 women. CT imaging was a sensitive method for detecting occult deformity. Using a semiquantitative scale for measuring deformity, all patients and 94 percent of expanders had some thoracic abnormality after tissue expansion. Rib and chest-wall contour changes were observed under 81 and 68 percent of the expanders, respectively. Routine chest roentgenograms were not a sensitive method for evaluating these deformities. The magnitude of deformity after unilateral expansion was not significantly different from that after bilateral expansion. Linear regression analysis indicated that early periprosthetic capsular contracture was negatively correlated with chest wall deformity. Only one patient experienced a clinically noticeable complication from chest compression--transient postexpansion exertional dyspnea. After removing the expanders and placing permanent implants along with capsulotomy, the mean deformity index decreased by 57 percent after 10.5 months median follow-up, which was highly significant (p less than 0.001). Our findings suggest that chest-wall deformity is a common occurrence after tissue expansion in patients undergoing breast reconstruction and is usually of minor clinical significance.
- Published
- 1991
- Full Text
- View/download PDF
9. Intraoperative tissue expansion for rhytidectomy.
- Author
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Schubert W and Shons AR
- Subjects
- Aging physiology, Humans, Smoking adverse effects, Rhytidoplasty methods, Tissue Expansion methods
- Published
- 1990
- Full Text
- View/download PDF
10. The effect of pentoxifylline on flap survival.
- Author
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Schubert W and Shons AR
- Subjects
- Animals, Rabbits, Rats, Graft Survival drug effects, Pentoxifylline pharmacology, Surgical Flaps, Theobromine analogs & derivatives
- Published
- 1990
11. Composite in situ vein bypass for upper extremity revascularization.
- Author
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Guzman-Stein G, Schubert W, Najarian DW, Press BH, and Cunningham BL
- Subjects
- Adult, Arterial Occlusive Diseases surgery, Female, Humans, Microsurgery, Veins transplantation, Brachial Artery surgery, Diabetic Angiopathies surgery, Forearm blood supply, Hand blood supply, Ischemia surgery
- Abstract
Chronic upper extremity arterial insufficiency is rare. Consequently, major reports specifically limited to the topic are scarce, and the clinical experience is small. In addition, symptomatology, diagnostic criteria, and guidelines for surgical management remain ill-defined. In the lower extremities, however, in situ vein bypass has been attempted for nearly three decades. This technique offers many advantages over traditional revascularization methods. Although the procedure has become popular for the lower extremity, no report of its use in the upper extremity is found in the literature. We report what may be the first case in which in situ bypass was used in the upper extremity for a threatened limb secondary to diabetic occlusive vascular disease complicated by a previous shunt used for hemodialysis. Revascularization of the upper extremity using the in situ vein bypass technique may offer a new alternative to traditional methods of revascularization.
- Published
- 1989
- Full Text
- View/download PDF
12. Pentoxifylline and pedicle flap survival.
- Author
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Schubert W, Guzman-Stein G, van der Vliet JA, and Cummingham B
- Subjects
- Animals, Erythrocytes drug effects, Graft Survival drug effects, Humans, Premedication, Pentoxifylline therapeutic use, Surgical Flaps, Theobromine analogs & derivatives
- Published
- 1987
13. Scalping injuries: new technique for stabilization of flaps to the skull.
- Author
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Schubert W, Guzman-Stein G, Hope R, Ahrenholz DH, Solem LD, and Cunningham BL
- Subjects
- Humans, Methods, Postoperative Care, Scalp surgery, Skin Transplantation, Scalp injuries, Surgical Flaps
- Abstract
Extensive scalping injuries offer a unique challenge for tissue coverage because of the wide expanse of bone and lack of deep soft tissue or significant perforating vessels. For smaller injuries, pedicle flaps offer ideal coverage. Larger defects can be covered by omental flaps. Coverage with a free muscle flap followed by split-thickness skin grafting offers optimal long-term coverage. Two new techniques are introduced. The wire-button technique offers stabilization, and the halo frame provides good support and protection for a new free-flap graft and may increase the success rate of flaps in patients with scalping injuries.
- Published
- 1988
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