Faculty Bibliography

Background/Purpose: Amniotic band sequence (ABS) is a complex congenital anomaly in which infants with no known genetic mutation have bands of maternal amniotic tissue wrapped around body parts, most commonly the limbs and digits. Two disparate theories attempt to explain the etiology of ABS. The extrinsic theory posits that disruption of the amnion is the primary event. The intrinsic theory suggests that the bands are the result of a fetal anomaly during development. Neither theory is widely accepted with proponents of both citing evidence to support their arguments. ABS is frequently associated with complex craniofacial clefting. We report a novel variation on this presentation, which strongly supports the intrinsic theory. Methods/Description: Three patients from two centers with complex craniofacial clefting and ABS were identified. The nature of the overlap of craniofacial clefting with banding phenotypes was characterized for each patient, with photographs, comprehensive physical exams, and Genetics evaluations. Results: The three patients presented with hypertelorism, plagioceph-aly, and different forms of complex craniofacial clefting: Patient 1-bilateral Tessier 2 with left Tessier 12 clefts, a left extrophic lacrimal duct and bilateral blindness, Patient 2-left Tessier 2 and right Tessier 3 clefts, Patient 3-right Tessier 12 cleft. Patient 1 had amniotic bands connecting the left extrophic lacrimal duct, left brow and left hand, with resultant complex acrosyndactyly. Patient 2 had partial amputations of the left 3rd-5th digits, and autotransplantation of 2 digits, with one along the ipsilateral Tessier 3 cleft and one on the parietal scalp, 2 cm above the left ear. Patient 3 had amputations of the 1st-4th digits of the right hand, and autotransplantation of a portion of an unspecified finger remnant onto the right brow. Conclusions: All three patients presented with amniotic bands connecting complex craniofacial clefts with ipsilateral digits, or amputated finger remnants reimplanted within ipsilateral clefts. This finding supports a model in which complex craniofacial clefts result in areas of exposed mesenchyme within the embryo. These exposed sticky areas are susceptible to adherence of ipsilateral fetal hands. In support of this possibility, facial and early digital development are temporally coincident, and these structures are anatomically adjacent early during embryogenesis. Exposed craniofacial mesenchyme also provides a surface for amniotic attachment, resulting in bands that lead to ABS, digital amputation and autotransplantation. An alternative extrinsic interpretation of this finding in which the amnion primarily ruptures is not supported, as this would have to occur around 8 weeks of embryonic development to cause the observed phenotypes. This is well before the amnion is likely to rupture from extrinsic forces. Therefore, these findings strongly suggest that development of amniotic bands occurs secondary to intrinsic fetal anomalies

BACKGROUND:Mandibular hypoplasia is a hallmark of Treacher Collins syndrome (TCS), and its severity accounts for significant functional morbidity. The purpose of this study is to develop a mandibular classification scheme. METHODS:A classification scheme was designed based on three-dimensional computed tomography (3D-CT) scans to assess 3 characteristic features: degree of condylar hypoplasia, mandibular plane angle (condylion-gonion-menton), and degree of retrognathia (sella-nasion-B point angle). Each category was graded from I to IV and a composite mandible classification was determined by the median value among the 3 component grades. RESULTS:Twenty patients with TCS, aged 1 month to 20 years, with at least one 3D-CT prior to mandibular surgery were studied. Overall, 33 3D-CTs were evaluated and ordered from least to most severe phenotype with 10 (30%) Grade 1 (least severe), 14 (42%) Grade 2, 7 (21%) Grade 3, and 2 (7%) Grade 4 (most severe). Seven patients had at least 2 longitudinal scans encompassing an average 5.7 (range 5-11) years of growth. Despite increasing age, mandibular classification (both components and composite) remained stable in those patients over time (P = 0.2182). CONCLUSION/CONCLUSIONS:The authors present a classification scheme for the TCS mandible based on degree of condylar hypoplasia, mandibular plane angle (Co-Go-Me angle), and retrognathia (SNB angle). While there is a natural progression of the mandibular morphology with age, patients followed longitudinally demonstrate consistency in their classification. Further work is needed to determine the classification scheme's validity, generalizability, and overall utility.

OBJECTIVES: To identify determinants of receipt of annual oral health examinations and self-rated oral health among diverse Asian American subgroups. METHODS: We used data from the Community Health Resources and Needs Assessment, a community-based survey of Asian American immigrant adults conducted in the New York City metropolitan region from 2013 to 2016 (n = 1288). We used multivariable logistic regression models to assess determinants of oral health care receipt and self-rated oral health. RESULTS: Failure to receive an annual oral health examination was common in this sample (41.5%) and was more frequent for participants who were younger and male and those who had poorer English fluency and lower educational attainment. Not having dental insurance versus having private dental insurance resulted in 2 to 3 times the odds of nonreceipt of oral health care and poor self-rated oral health. CONCLUSIONS: Nonreceipt of annual oral health examinations and poor self-rated oral health were common across Asian American subgroups. Facilitating dental insurance sign-up and providing in-language services may improve oral health care access and ultimately oral health among Asian American immigrants.

BACKGROUND: The ethical practice of medicine has always been of utmost importance, and plastic surgery is no exception. The literature is devoid of information on the teaching of ethics and professionalism in plastic surgery. In light of this, a survey was sent to ascertain the status of ethics training in plastic surgery residencies. METHODS: A 21-question survey was sent from the American Council of Academic Plastic Surgeons meeting to 180 plastic surgery program directors and coordinators via email. Survey questions inquired about practice environment, number of residents, presence of a formal ethics training program, among others. Binary regression was used to determine if any relationships existed between categorical variables, and Poisson linear regression was used to assess relationships between continuous variables. Statistical significance was set at a P value of 0.05. RESULTS: A total of 104 members responded to the survey (58% response rate). Sixty-three percent were program directors, and most (89%) practiced in academic settings. Sixty-two percent in academics reported having a formal training program, and 60% in private practice reported having one. Only 40% of programs with fewer than 10 residents had ethics training, whereas 78% of programs with more than 20 residents did. The odds of having a training program were slightly higher (odds ratio, 1.1) with more residents (P = 0.17). CONCLUSIONS: Despite the lack of information in the literature, formal ethics and professionalism training does exist in many plastic surgery residencies, although barriers to implementation do exist. Plastic surgery leadership should be involved in the development of standardized curricula to help overcome these barriers.

Background Ablation of locally advanced or recurrent head and neck cancer often results in large composite orofacial defects with limited recipient vessels. These complex defects lend well to intrinsic chimeric flap reconstruction, which allows greater ability to inset various flap component tissue types than composite flaps and requires only one set of microvascular anastomoses. Methods A retrospective chart review was performed on all patients who underwent orofacial reconstruction with an intrinsic chimeric free flap from 2002 to 2015. Flaps with only one tissue type, such as two separate skin paddles with no additional component, were not considered chimeric flaps and therefore not included in this report. Patient demographic data, defect, and flap characteristics, as well as complications and outcomes were analyzed to create a guide for flap selection. Univariate and multivariate analysis was performed to determine risk factors for flap take-back and failure. Results Seventy-five patients underwent orofacial intrinsic chimeric free flap reconstruction. Results were organized based on defect characteristics to create a guide for flap selection. The number of chimeric flap components and operation duration were independently statistically associated with flap take-backs (p < 0.05). There were two (3%) total and five (7%) partial flap losses. Average follow-up time was 32.7 months. Conclusions Intrinsic chimeric flaps provide a versatile and elegant reconstructive option for a variety of complex orofacial defects. We provide a guide to facilitate decision making in flap selection for these challenging reconstructions and report factors associated with flap take-backs and losses.

To examine how proposed Medicaid reform plans are experienced by racial/ethnic minority older adults and what the implications are for their ability to access dental care through Medicaid, from 2013 to 2015 we conducted focus groups in northern Manhattan, New York, New York, among African American, Dominican, and Puerto Rican adults aged 50 years and older. Participants reported problems with affording copayments for care, complicated health and social issues, the need for vision and dental care close to home, and confusion about and stigmatization with Medicaid coverage. Federal, state, and local public health agencies can help by clarifying and simplifying Medicaid plans and sustaining benefits that older adults need to live healthy and dignified lives.

BACKGROUND: Soft-tissue support devices are used during breast reconstruction. This study investigated long-term clinical data following SERI Surgical Scaffold (SERI) implantation, a bioresorbable, silk-derived scaffold for soft-tissue support. METHODS: This was a prospective, multicenter study in 103 subjects who received SERI during stage 1 of 2-stage breast reconstruction with subpectoral tissue expander placement (Natrelle Style 133V; Allergan plc, Dublin, Ireland) followed by subpectoral breast implant placement. Investigator satisfaction (11-point scale: 0, very dissatisfied and 10, very satisfied) at 6 months was the primary endpoint. Ease of use, satisfaction, scaffold palpability/visibility, breast anatomy measurements via 3D images, SERI integration, histology, and safety were also assessed through 2 years after stage 1 surgery. RESULTS: Analyses were performed on the per-protocol population (103 subjects; 161 breasts) with no protocol deviations that could affect outcomes. Ease of use and subject and investigator satisfaction with SERI were high throughout 2 years. Breast anatomy measurements with 3D images demonstrated long-term soft-tissue stability of the lower breast mound. Key complication rates per breast were tissue/skin necrosis and wrinkling/rippling (8.1% each) and seroma, wound dehiscence, and breast redness (5.0% each). Over 2 years, 4 breasts in 4 subjects underwent reoperation with explantation of any device; 2 breasts required SERI explantation. SERI was retained in 98.8% of breasts (159/161) at 2 years. CONCLUSIONS: SERI was associated with high and consistent levels of investigator and subject satisfaction and demonstrated soft-tissue stability in the lower breast through 2 years. SERI provides a safe, long-term benefit for soft-tissue support in 2-stage breast reconstruction.

The U.S. Food and Drug Administration released draft guidance documents on human cells, tissues, and cellular and tissue-based products regulations. These proposed guidance documents can impact the practice of plastic surgery in the area of tissue grafting procedures. This article describes the relevant issues in these draft guidance documents, and presents the comments provided to the U.S. Food and Drug Administration by the American Society of Plastic Surgeons.

Background/Purpose: Autogenous ear reconstruction remains one of the most technically challenging procedures in plastic surgery. Current methods to autogenous ear construct design entail tracing the contralateral (unaffected) ear, if available, and using this 2 dimensional outline as a surgical model. This study explores the feasibility of creating in-house patient specific intraoperative 3D models of autogenous ear reconstruction. Methods/Description: A 3 dimensional photograph of the unaffected ear (3DMD, Atlanta, GA) of a patient with unilateral microtia was uploaded into Amira (FEI Company, Hillsboro, Oregon, USA) and transformed to a (.stl) digital model. After rendering the (.stl) model of the ear, it was imported into Blendere (Amsterdam, The Netherlands) where it was inverted along the vertical axis to create a working template of the contralateral ear. The depths of the scapha, triangular fossa and cymba were all deepened to accentuate these contours. Additional relief was added to the helical root to further define this structure. The final template was digitally separated to create the requisite auricular components for the Nagata technique reconstruction: helix; antihelical fold with the superior and inferior crus; base frame. The patient had an intact tragus. The helix was digitally straightened to optimize its use as a model. The complete auricular model and the separated auricular components were all individually 3D printed (Builder Premium 3D Printer, Noordwijkerhout, The Netherlands) using a polylactic acid filament and sterilized following the manufacturer's specifications (1218C for 1 hour and 30 minute dry cycle). Results: The total time of digital preparation was 5 hours. Total time of 3D printing was 5.5 hours. Total cost of manufacturing was $0.78. On the day of surgery these sterilized, patient-specific 3 dimensional models were brought to the operating room and placed on the back table with the ear sculpting tools and carving block. The sterilized models were placed on the cartilage grafts and the forms and relief of the cartilage construct was easily appreciated and incorporated into the cartilage shape. Compared to the classic auricular tracings also present during this surgery these 3D printed models contained more detailed anatomic information which eliminated much of the guesswork from auricular reconstruction and resulted in a more efficient and precise operation. Conclusions: Leveraging hardware, expertise and software platforms already existing within an academic medical center, affordable, sterilizable, patient-specific 3D auricular models can be manufactured and used during autogenous ear construction