Faculty Bibliography

BACKGROUND:Improving the quality of research published in plastic surgery literature has been recognized as a difficult and time-intensive process. Despite significant progress over the last decade, leaders in the field continue to advocate for higher-quality studies to better inform clinical practice. OBJECTIVES/OBJECTIVE:The aim of this study was to evaluate and analyze trends in the levels of evidence (LOEs) of the plastic surgery literature over the last decade in 4 major journals. METHODS:After systematic review of all articles published between 2008 and 2017 in Plastic and Reconstructive Surgery, Annals of Plastic Surgery, Journal of Plastic, Reconstructive, and Aesthetic Surgery, and Aesthetic Surgery Journal (ASJ), included articles were assigned an LOE and classified according to study design and category. RESULTS:In total, 8211 articles were included. Case series and reports represented 36.1% and 13.6% of studies, respectively. Additionally, 27.2% were retrospective cohort studies, 8.2% prospective cohort studies, 3.9% systematic reviews, and 2.9% randomized controlled trials (RCTs). Overall, the percentage of Level I/II studies has increased from 10.9% in 2008 to 17.3% in 2017. ASJ published the greatest proportion of Level I/II studies (23.2%) and RCTs (5.1%) of all the journals. There were significant differences in the distribution of Level I/II studies by journal (P < 0.001) and category (P < 0.001). CONCLUSIONS:Over the past decade, plastic surgery journals have published higher-quality research and a significantly greater proportion of Level I and II studies. The field must continue to strive for robust study designs, while also recognizing the importance of lower-LOE research.

Background/UNASSIGNED:Racial disparities exist in the accessibility, delivery, and quality of healthcare. Clinical images are central to plastic surgery, but choice of images in the literature is susceptible to implicit biases. The objective of this study was to determine if published images reflect the racial demographic of patients. Methods/UNASSIGNED:for each decade between 1992 and 2017. For each article, images were categorized as white or nonwhite based on Fitzpatrick Scale (1-3 versus 4-6). Additionally, the authors' geographic region was documented. Proportional data and average number of nonwhite images per article were compared. Regression analyses were performed to assess the correlation of time and geographic region on nonwhite images. Results/UNASSIGNED:< 0.001). Conclusions/UNASSIGNED:Roughly 60%-70% of the world population and 30% of US cosmetic patients are nonwhite. Images in plastic surgery literature reflect neither racial demographics by global region nor the patient population seeking surgery. To advance equitable care, images should better represent the racial composition of the populations served.

There are over 2 million long bone defects treated in the USA annually, of which ~5% will not heal without significant surgical intervention. While autogenous grafting is standard of care in simple defects, a customized scaffold for large defects in unlimited quantities is not available. Recently, a three-dimensionally (3D) printed bioactive ceramic (3DPBC) scaffold has been successfully utilized in the of repair critical sized long bone defects in vivo. In this study, 3DPBC scaffolds were augmented with Dipyridamole, an adenosine A2A receptor (A_2A R) indirect agonist, because of its known effect to enhance bone formation. Critical-sized full thickness segmental defects (~11mm x full thickness) defects were created in the radial diaphysis in New Zealand White rabbits (n=24). A customized 3DPBC scaffold composed of β-tricalcium phosphate was placed into the defect site. Groups included scaffolds that were collagen-coated (COLL), or immersed in 10μM, 100μM, or 1000μM Dipyridamole solution. Animals were euthanized 8 weeks post-operatively and the radii/ulna-scaffold complex retrieved, en bloc, for micro-CT, histological and mechanical analysis. Bone growth was assessed exclusively within scaffold pores and evaluated by microCT and advanced reconstruction software. Biomechanical properties were evaluated utilizing nanoindentation to assess the newly regenerated bone for elastic modulus (E) and hardness (H). MicroCT reconstructions illustrated bone in-growth throughout the scaffold, with an increase in bone volume dependent on the Dipyridamole dosage. Histological evaluation did not indicate any adverse immune response while revealing progressive remodeling of bone. These customized biologic 3DPBC scaffolds have the potential of repairing and regenerating bone. This article is protected by copyright. All rights reserved.

Facial transplantation has gained increasing acceptance as a treatment option to improve quality of life (QoL) for persons suffering from severe facial disfigurement. Despite its growth, the field has yet to establish a consistent approach to assessing QoL in face transplant candidates and recipients that includes integration of meaningful patient-reported outcomes. The published literature suggests that face transplant programs currently use a wide variety of assessment tools and strategies. Moreover, confusion remains as to how best to weigh patients' lived experiences and incorporate them into QoL assessments. Qualitative research can illuminate the dimensions of QoL that are meaningful to face transplant candidates and recipients. Coupled with collaboration and data sharing across face transplant programs, qualitative research will help to bring conceptual clarity and transparency to the assessment process.

Operative experience for the contemporary trainee has become exceedingly more challenging in the setting of more stringent hospital regulations. Surgical training is thus shifting toward more self-directed, independent learning to maximize operative opportunities as they become available; yet, this can prove difficult for complex surgeries like craniofacial procedures. The intricate anatomy and fine reconstructive techniques employed cannot be readily depicted onto a two-dimensional page. To address this educational gap, the Craniofacial Interactive Virtual Assistant-Pro Edition (CIVA-Pro) was developed as a web-based surgical simulator to aid learners with conceptualizing the surgical principles utilized in these cases. The current work reviews the Bilateral Sagittal Split Osteotomy module of CIVA-Pro, providing detailed narratives for each chapter with expert commentary on broadened indications and future directions.

Face transplantation has evolved into a viable reconstructive option for patients with extensive facial disfigurement. Because the first face transplant procedure was described in 2005, the safety and feasibility of the procedure have been validated, and the focus of the field has shifted toward refining functional and esthetic outcomes. Recovery of muscle function following facial transplantation is critical to achieving optimal facial function and restoring facial expression. Assessment of facial muscle function in face transplant recipients has traditionally relied on clinical evaluation. In this study, we describe longitudinal changes in facial muscle volumes captured through quantitative magnetic resonance imaging in a face transplant recipient and compare these findings with functional outcomes evaluated through clinical assessment.

PURPOSE/OBJECTIVE:To highlight the challenges and lessons learned in tooth-bearing maxillomandibular facial allotransplantation. PATIENTS AND METHODS/METHODS:Two patients with ballistic composite facial injury underwent tooth-bearing maxillomandibular facial transplantation (FT) after informed consent and institutional review board approval. Patient 1 had undergone total face, double jaw, teeth, and tongue transplantation in March 2012. Patient 2 had undergone partial face, double jaw, and teeth transplantation in January 2018. Le Fort III and bilateral sagittal split skeletal osteotomies were performed in both transplants. Computerized surgical planning was used in both cases, and the allografts were transferred in intermaxillary fixation (IMF) with prefabricated dental splints before rigid skeletal fixation. RESULTS:Normal class I occlusion was achieved at the conclusion of each surgery. Patient 1 had developed a 2 × 2-mm palatal fistula in the early postoperative period and had also gradually developed class III malocclusion. Orthodontic treatment was started at 5 months after transplantation but failed. A Le Fort III advancement was performed 1 month later with successful restoration of class I occlusion. The palatal fistula was successfully repaired at 9 postoperative months. Patient 2 developed a postoperative palate and floor of mouth dehiscence, requiring palatal repair and hyoid and genioglossus advancement on postoperative day (POD) 11. Orthodontic treatment was initiated for Class II malocclusion. On POD 108, left mandibular nonunion was diagnosed. Left coronoidectomy, open reduction, and internal fixation were performed. IMF was maintained for 2 weeks. Orthodontic treatment was then resumed, with normalization of the occlusion by 10 months after FT. CONCLUSIONS:Maxillomandibular transplantation is a viable reconstructive solution for composite midface defects not amenable to autologous reconstruction. Improvement of functional outcomes and prevention of major complications rely on close attention to occlusal relationships, temporomandibular joint dynamics, dental health, and the intraoral donor-recipient soft tissue interface.

INTRODUCTION/BACKGROUND:The number of patients who may benefit from evaluation for face transplantation in the United States (US) remains largely unknown. The goal of our study was to better delineate the pool of patients who might benefit from face transplant evaluation based on the characteristics and mechanisms of injury of previously reported face transplant recipients. METHODS:The authors utilized data from the National Electronic Injury Surveillance System-All Injury Program in this study. The US Census Bureau data were used for population estimates. Inclusion and exclusion criteria were determined based on the characteristics of face transplant recipients to date, and the mechanisms of injury they sustained ultimately necessitating face transplantation. Statistical significance was reached if P <0.05. RESULTS:The estimated annual incidence of preventable craniofacial injuries from firearms (44,266-58,299; 31.7% increase), burns (5712-19,433; 240.2% increase), and animal attacks (5355-14,666; 173.9% increase) increased from 2005 to 2014, whereas the estimated annual incidence of craniofacial injuries from machinery (3927-2933; 25.3% decrease) decreased between 2005 and 2014. The authors estimate the annual incidence rate to fall between 32.1 per 100,000 and 58.1 per 100,000 among individuals aged 20 to 64 in the US. CONCLUSION/CONCLUSIONS:In this study, the authors estimate the annual incidence rate of individuals aged 20 to 64 in the US who may benefit from face transplant evaluation and believe that this quantification has the potential to initiate actionable discussions regarding geographical and financial factors affecting access to care in this patient population.

Background/Purpose : APS ACTION Registry was created to study long-term outcomes in persistently antiphospholipid antibody (aPL)-positive patients with and without other systemic autoimmune diseases. Our primary objective was to determine whether clinically significant aPL profiles at baseline remain stable over time. Methods : A web-based data capture system is used to store patient demographics and aPL-related medical history. Inclusion criteria are positive aPL, based on the Updated Sapporo APS Classification Criteria, tested at least twice within one year prior to enrollment. Patients are followed every 12+/-3 months with clinical data and blood collection. For this prospective analysis of available follow-up (f/u) aPL tests, clinically significant aPL profile was defined as positive lupus anticoagulant (LA) test and/or aCL/abeta 2 GPI IgG/M > 40U. Stable aPL profile was defined as a clinically significant aPL profile in at least two-thirds of f/u measurements. Univariate and multivariable generalized linear mixed models with logit link were used to assess the effect of time and other variables of interest on odds of clinically significant aPL profile. Wilcoxon rank-sum and Fisher's exact tests were employed to compare clinical characteristics of patients with stable versus unstable aPL profiles. Results : As of January 2019, 796 patients were enrolled from 26 centers worldwide, 482 had f/u visits with aPL results, and 472 patients had a clinically significant aPL profile at baseline. Based on aPL profiles at f/u visits (median follow up: 5.1 years [interquartile range [IR]: 4.3, 5.8]; median number of f/u visits with aPL profiles: 2 [interquartile range: 1, 3]), 366/472 (78%) patients had stable aPL profiles over time (54 [11%] unstable; 52 [11%] inconclusive). Time did not affect odds of maintaining a clinically significant aPL profile at f/u (p=0.906). In multivariable analysis, time, age, concomitant systemic autoimmune disease (mainly lupus), smoking history, and hydroxychloroquine use did not affect odds of maintaining a clinically significant aPL profile at f/u. Based on crude unadjusted comparisons, patients with stable aPL profiles, compared to those with unstable profiles, were more likely to have baseline positive LA test, aCL IgM > 40U (positive trend for IgG), abeta 2 GPI IgG > 40U (positive trend for IgM), two or more positive aPL tests, and history of arterial events and aspirin use (Table). Conclusion : In approximately 80% of patients with a baseline clinically significant aPL profile (LA test and/or aCL/ abeta 2 GPI IgG/M > 40U), aPL profiles remain consistently significant (stable) during five years of follow-up. Further multivariate analysis will investigate predictors of aPL profile stability over time, and guide future validation studies of stored samples through APS ACTION core laboratories