Branko Bojovic

Total face, double jaw, and tongue transplantation: An evolutionary concept

Background: The central face high-energy avulsive injury has been frequently encountered and predictably managed at the R Adams Cowley Shock Trauma Center. However, despite significant surgical advances and multiple surgical procedures, the ultimate outcome continues to reveal an inanimate, insensate, and suboptimal aesthetic result. Methods: To effectively address this challenging deformity, a comprehensive multidisciplinary approach was devised. The strategy involved the foundation of a basic science laboratory, the cultivation of a supportive institutional clinical environment, the innovative application of technologies, cadaveric simulations, a real-time clinical rehearsal, and an informed and willing recipient who had the characteristic deformity. Results: After institutional review board and organ procurement organization approval, a total face, double jaw, and tongue transplantation was performed on a 37-year-old man with a central face high-energy avulsive ballistic injury. Conclusions: This facial transplant represents the most comprehensive transplant performed to date. Through a systematic approach and clinical adherence to fundamental principles of aesthetic surgery, craniofacial surgery, and microsurgery and the innovative application of technologies, restoration of human appearance and function for individuals with a devastating composite disfigurement is now a reality. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.

Ocular injury, visual impairment, and blindness associated with facial fractures: a systematic literature review.

Background: Injuries to the face can potentially lead to destruction of vital structures, with devastating sequelae to the patient. Facial fractures, especially of the midface, are often complicated by ocular injuries. The purpose of this study was to systematically review the literature to better understand specific fracture patterns associated with ocular injuries, including visual impairment and blindness. Methods: The PubMed, EMBASE, and Cochrane databases from January of 2004 to April of 2010 were systematically reviewed to identify relevant studies. Only those that investigated facial fractures with concomitant ocular injuries, visual impairment, and/or blindness were included. Studies that described nonfacial fractures or those that only focused on the function of extraocular muscles were excluded. Case reports, nonsystematic reviews, and studies with fewer than 10 patients were also excluded. Results: Eleven articles met study criteria and were included for analysis. There were a total of 14,535 patients, with an average of 1211 patients (range, 39 to 4426) per study. Level of evidence included levels II (n = 1 study), III (n = 1), and IV (n = 9). The mean reported rate of acute visual loss was 1.7 percent. Periorbital and orbital blowout fractures were more often complicated by ocular injuries compared with other facial fracture patterns. High-impact zygomatic fractures were most commonly associated with blindness. Conclusions: Existing studies exploring ocular injuries, visual impairment, and blindness associated with facial fractures offer conflicting data. Specifically directed studies are required so that significant correlations between specific fracture patterns and specific ocular injuries can be drawn. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, IV.

Total face, double jaw, and tongue transplant simulation: a cadaveric study using computer-assisted techniques.

Background: With the transplantation of more extensive facial vascularized composite allografts, fundamental craniofacial and aesthetic principles become increasingly important. In addition, computer-assisted planning and intraoperative navigation may improve precision and efficiency in these complex procedures. Methods: Ten mock face transplants were performed in 20 cadavers. The vascularized composite allograft consisted of all facial skin, mimetic muscles, the tongue, the midface by means of a Le Fort III osteotomy, and the mandible by means of sagittal split osteotomies. Craniofacial computed tomographic scans were obtained before and after the mock transplants. Surgical planning software was used to virtually plan the osteotomies, and a surgical navigation system guided the osteotomies intraoperatively. Cephalometric analyses were compared between the virtually planned transplants and the actual postoperative results. Results: The combination of preoperative computerized planning and intraoperative guidance consistently produced a vascularized composite allograft that could be easily fixated to the prepared recipient, with only minimal burring of osteotomy sites necessary. Satisfactory occlusion was maintained, and postoperative computed tomography confirmed accurate skeletal fixation. Insignificant differences with regard to cephalometric analyses were noted when predicted and actual postoperative data were compared. Conclusions: The authors’ experience treating severe craniofacial injury allowed consistent transfer of facial vascularized composite allografts, maintaining proper occlusion. Preoperative computer planning and intraoperative navigation ensured precise osteotomies and a good donor-recipient skeletal match, which greatly reduced the need for intraoperative adjustments and manipulation. This total facial vascularized composite allograft represents one of the most extensive described and is intended to represent a typical central facial demolition pattern.

Total face, double jaw, and tongue transplant research procurement: an educational model.

Background: Transplantation of a facial vascularized composite allograft is a highly complex procedure that requires meticulous planning and affords little room for error. Although cadaveric dissections are an essential preparatory exercise, they cannot simulate the true clinical experience of facial vascularized composite allograft recovery. Methods: After obtaining institutional review board approval to perform a facial vascularized composite allograft research procurement, a 66-year-old, brain-dead donor was identified. The family graciously consented to donation of a total face, double jaw, and tongue allograft and multiple solid organs. Results: A craniofacial computed tomographic angiogram was obtained preoperatively to define the vascular anatomy and facilitate virtual computerized surgical planning. The allograft was procured in 10 hours, with an additional 2 hours required for an open tracheostomy and silicone facial impression. The donor was coagulopathic throughout the recovery, resulting in an estimated blood loss of 1500 ml. Fluorescence angiography confirmed adequate perfusion of the entire allograft based on lingual and facial arterial and external jugular and thyrolinguofacial venous pedicles. The solid organ transplant team initiated abdominal organ isolation while the facial allograft procurement was in progress. After completion of allograft recovery, the kidneys and liver were recovered without complication. Conclusions: Before conducting a clinical face transplant, adequate preparation is critical to maximize vascularized composite allotransplantation outcomes and preserve solid organ allograft function. As more centers begin to perform facial transplantation, research procurement of a facial vascularized composite allograft offers a unique educational opportunity for the surgical and anesthesia teams, the organ procurement organization, and the institution. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.

Antibiotics and Facial Fractures: Evidence-Based Recommendations Compared with Experience-Based Practice

Efficacy of prophylactic antibiotics in craniofacial fracture management is controversial. The purpose of this study was to compare evidence-based literature recommendations regarding antibiotic prophylaxis in facial fracture management with expert-based practice. A systematic review of the literature was performed to identify published studies evaluating pre-, peri-, and postoperative efficacy of antibiotics in facial fracture management by facial third. Study level of evidence was assessed according to the American Society of Plastic Surgery criteria, and graded practice recommendations were made based on these assessments. Expert opinions were garnered during the Advanced Orbital Surgery Symposium in the form of surveys evaluating senior surgeon clinical antibiotic prescribing practices by time point and facial third. A total of 44 studies addressing antibiotic prophylaxis and facial fracture management were identified. Overall, studies were of poor quality, precluding formal quantitative analysis. Studies supported the use of perioperative antibiotics in all facial thirds, and preoperative antibiotics in comminuted mandible fractures. Postoperative antibiotics were not supported in any facial third. Survey respondents (n = 17) cumulatively reported their antibiotic prescribing practices over 286 practice years and 24,012 facial fracture cases. Percentages of prescribers administering pre-, intra-, and postoperative antibiotics, respectively, by facial third were as follows: upper face 47.1, 94.1, 70.6; midface 47.1, 100, 70.6%; and mandible 68.8, 94.1, 64.7%. Preoperative but not postoperative antibiotic use is recommended for comminuted mandible fractures. Frequent use of pre- and postoperative antibiotics in upper and midface fractures is not supported by literature recommendations, but with low-level evidence. Higher level studies may better guide clinical antibiotic prescribing practices.

Aesthetic and functional facial transplantation: a classification system and treatment algorithm.

Background: As of July of 2013, 27 facial vascularized composite allotransplantations have been performed. The authors developed a classification system and treatment algorithm that is practical and surgically applicable. Methods: The majority of the transplants have been described in the surgical literature and the media, and a review of the data was performed. A classification system and a treatment algorithm were designed. Skeletal defects were defined by craniofacial osteotomies and soft-tissue defects by aesthetic facial subunits. The soft-tissue defect was subdivided into the following subunits: oral-nasal (type 1), oronasal-orbital (type 2), and full facial (type 3). The bony defects were subdivided into mandibular involvement (M), Le Fort 1 (A), Le Fort 3 (B), and monobloc (C). Results: The mechanisms of injury included trauma (n = 13), burns (n = 8), congenital deformity (n = 3), oncologic resection (n = 1), and unreported (n = 2). According to the proposed classification system: one was type 1; one was type 1-M; one was type 1-MB; two were type 2; two were type 2-B; two were type 2-MB; six were type 3; one was type 3-B; and three were type 3-MB; eight could not be classified due to a lack of data. The treatment algorithm designed a vascularized composite allotransplantation that addressed the bony and soft-tissue components. Conclusions: Patient selection for these complicated procedures, currently dependent on lifelong immunosuppression, is crucial to their success. The authors describe a classification system and treatment algorithm for facial defects that may be ideally suited for facial transplantation. The proposed classification and algorithm may help centers define indications and ideally improve patient outcomes. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.

Principles of face transplant revision: beyond primary repair.

Background: Over the past decade, facial vascularized composite allotransplantation has earned its place at the top of the reconstructive ladder. However, as in free tissue transfer, postoperative revisions are necessary to achieve optimal functional and aesthetic results. Although revising a facial vascularized composite allotransplantation may potentially risk the integrity of the graft, the authors believe that the advantages of appropriately chosen revisions may provide great benefit. Methods: Following the most extensive face transplant performed to date, revisions were performed in two surgical procedures. The first included a Le Fort III osteotomy for malocclusion correction, midface tissue resuspension and coronal eyebrow lift to correct soft-tissue ptosis, and submental lipectomy. Bilateral blepharoplasty to minimize tissue excess and scar revision were performed at a subsequent operation. Cephalometric analysis and angiography were performed and blink data collected. Results: Before transplantation, the patient was in class III malocclusion. After transplantation, class I occlusion was obtained; however, the patient subsequently returned to class III occlusion. After skeletal revision, class I occlusion was obtained; however, a corneal blink deficit was noted. Eight months after skeletal revision, blink had improved spontaneously. Angiography revealed collateralization providing retrograde flow from the flap to the recipient. Conclusions: Although the necessity for revisions is clear, determining which revisions to safely perform and their timing and execution have not been explored. The authors address four distinct categories of revisions, including soft-tissue revision, hard-tissue mismatch, and craniofacial skeleton and dental occlusion. The authors illustrate the success of these revisions and assess their advantages, disadvantages, and relative risk. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.

Comprehensive Observations of Resident Evolution: A Novel Method for Assessing Procedure-Based Residency Training

Background: Assessment of surgical skills in the operating room remains a challenge. Increasing documentation requirements of the Accreditation Council for Graduate Medical Education are necessitating mechanisms to document trainee competence without hindering operative turnover. The authors created a comprehensive electronic resource to facilitate plastic surgery training program compliance with changes mandated by Next Accreditation System Milestones and the ACGME. Methods: In 2013, the authors implemented the Comprehensive Observations of Resident Evolution, or CORE, a Web-based tool to assess plastic surgery residents. It comprises a rapid electronic assessment of resident operating room performance completed after each surgery; a data dashboard displaying graphical summaries of resident progress by case, Milestone, or current procedural terminology code; and an electronic Milestones tracker (MileMarker), which enables ongoing trainee assessments. Results: From January through October of 2014, 24 residents completed nearly 1300 Operative Entrustability Assessments. Thirty-eight percent of residents reported more immediate feedback regarding operative performance. The assessment demonstrates construct validity, which distinguishes novice residents from experienced residents. Individual case data identify resident-specific operative strengths and weaknesses. Using assessment data, the first two Clinical Competency Committee reviews were 81 percent and 87 percent shorter than Milestones pilot test site reports (average, 11.5 and 8 minutes versus 60 minutes per resident, respectively). Conclusions: Comprehensive Observations of Resident Evolution is capable of capturing operative performance data on all operating room cases by primary current procedural terminology code. It increases immediate attending/trainee feedback and assessment transparency, enables trainee self-monitoring, and informs end-of-rotation reviews, programwide assessments, and tailoring of training to address specific needs. It is a valuable resource for tracking resident progress in real-time while maintaining compliance with evolving ACGME requirements.

Algorithm for Total Face and Multiorgan Procurement From a Brain‐Dead Donor

Procurement of a facial vascularized composite allograft (VCA) should allow concurrent procurement of all solid organs and ensure their integrity. Because full facial procurement is time–intensive, “simultaneous–start” procurement could entail VCA ischemia over 12 h. We procured a total face osteomyocutaneous VCA from a brain–dead donor. Bedside tracheostomy and facial mask impression were performed preoperative day 1. Solid organ recovery included heart, lungs, liver, kidneys, and pancreas. Facial dissection time was 12 h over 15 h to diminish ischemia while awaiting recipient preparation. Solid organ recovery began at 13.5 h, during midfacial osteotomies, and concluded immediately after facial explantation. Facial thoracic and abdominal teams worked concurrently. Estimated blood loss was 1300 mL, requiring five units of pRBC and two units FFP. Urine output, MAP, pH and PaO2 remained normal. All organs had good postoperative function. We propose an algorithm that allows “face first, concurrent completion” recovery of a complex facial VCA by planning multiple pathways to expedient recovery of vital organs in the event of clinical instability. Beginning the recipient operation earlier may reduce waiting time due to extensive recipient scarring causing difficult dissection.

Surface anatomy of the middle division of the facial nerve: Zuker's point.

Background: The anatomy of the facial nerve and its branches has been well documented. The course of the extratemporal facial nerve, its anatomical planes, and the surface landmarks of the temporal division and marginal mandibular division are well known. However, the surface landmark of the middle division of the facial nerve has not been studied to date. Methods: Eighteen hemifacial dissections in 10 fresh human cadavers were performed through a preauricular face-lift incision. An 18-gauge needle with brilliant green dye was used to mark the nerve through the skin before dissection. The exact location of the middle division branches of the facial nerve was documented in relation to the transcutaneous marking. Results: The middle division branches of the facial nerve were found to lie at a mean of 2.3 mm from the tattooed point, with a range of 0 to 6 mm. A nerve branch was found directly tattooed by the needle seven of 18 times, inferior to the tattoo five of 18 times, and superior to the tattoo six of 18 times. Conclusions: The zygomatic/buccal motor branch that innervates the zygomaticus major muscle can be reliably found at the midway point on a line drawn from the root of the helix and the lateral commissure of the mouth. This study will help guide surgeons to the middle division of the facial nerve as it applies to facial surgery.