Dorsal Fixation of Coronal Hamate and Fifth Metacarpal Base Fractures: An Anatomic Evaluation of the Ulnar Nerve.

PURPOSE: Traumatic drill overshoot during dorsal fixation of coronal hamate and fifth metacarpal base fractures risks iatrogenic ulnar nerve injury. This study describes the anatomic relationships between exiting volar drill tips and ulnar nerve branches. METHODS: Dorsal drilling of hamate bones and fifth metacarpal bases was performed on cadavers. Dorsal hamate bodies were subdivided into 4 quadrants: (1) distal-ulnar, (2) distal-radial, (3) proximal-ulnar, and (4) proximal-radial. Screws measuring 5 mm more than the dorsal-to-volar bone depths were placed in each quadrant to represent drill exit trajectories with consistent overshoot. A single screw was similarly placed 5 mm distal to the midline articular surface of the dorsal fifth metacarpal base. Distances between estimated drill tips and ulnar nerve branches were measured. RESULTS: Ten cadaver hands were examined. The fifth metacarpal base screw tips directly abutted the ulnar motor branch in 6 hands, and were within 1 mm in 4 hands (mean, 0.4 ± 0.5 mm). Distances from the tips to the ulnar motor and sensory branches were largest in the distal-radial quadrant (11.8 ± 0.8 mm and 9.2 ± 1.9 mm, respectively) and smallest in the proximal-ulnar quadrant (7.3 ± 1.5 mm and 4.3 ± 1.1 mm, respectively). Distances to the ulnar motor and sensory branches were similar between the proximal-ulnar and distal-ulnar quadrants, and between the proximal-radial and distal-radial quadrants. CONCLUSIONS: Dorsal drilling of coronal hamate fractures appears to be safe, as volar drill tips are well away from ulnar nerve motor and sensory branches. Distances to ulnar nerve branches are largest, and theoretically safest, with dorsal drilling in the distal-radial hamate. Dorsal drilling of fifth metacarpal base fractures appears to carry a high risk for potential ulnar motor nerve injury. CLINICAL RELEVANCE: These findings may help minimize potential risks for iatrogenic ulnar nerve injury with dorsal drilling of hamate and fifth metacarpal base fractures.

A Review on Variability in Treatment Protocols With Posterior Cranial Vault Distraction.

BACKGROUND: Prior studies have confirmed the ability of posterior cranial vault distraction osteogenesis (PVDO) to expand the intracranial volume in patients with craniosynostosis. To date, there is scant literature on the optimal distraction protocol for PVDO. The authors sought to review the literature and define a common protocol for posterior cranial vault distraction. METHODS: The authors performed a systematic review for published PVDO protocols. The data collected from these studies included age at the time of PVDO, number of distraction devices placed, time for latency, rate and rhythm of distraction, distraction length, time for consolidation, and surgical outcomes. RESULTS: A total of 286 patients were identified within 24 studies from 2011 to 2019. The mean age of patients identified was 25.34 months. After application of distractors, latency period ranged between 1 and 7 days, with most patients undergoing 5 to 7 days of latency. Once distraction was begun, the majority of patients (77.4%) underwent 1 mm of distraction daily. Total lengths of distraction ranged between 13 and 35 mm, with the largest cohort of patients undergoing 26 to 30 mm of total distraction. A total of 60 complications were reported for a total of 212 patients, yielding an overall complication rate of 28.3%. CONCLUSIONS: Although there is variability in reported PVDO protocols, the majority are similar to distraction osteogenesis protocols described for long bone sites. Increased patient age correlates with selection of a greater latency period and total distraction length, while frequency of complications is also increased.

Evaluation of plastic surgery resident aesthetic clinic websites.

BACKGROUND: The purpose of the present study was to evaluate the website pages of integrated plastic and reconstructive surgery resident aesthetic clinics in the United States. METHODS: Website pages dedicated to resident aesthetic clinics in all integrated plastic and reconstructive surgery residency programs (n = 79) were accessed between October and November 2019 and evaluated across several criteria, including: number of pages, procedures offered, faculty participation, respective prices, patient photographs, patient testimonials, contact information, and specific recruitment incentives. RESULTS: Seventy-nine integrated and 54 independent residency programs were identified, 31 of which had both an integrated and an independent residency program for a total of 102 distinct programs. Out of these, only 11 programs (10.8%) had a webpage dedicated to their resident aesthetic clinic (Figure 1). Twelve other programs (13.7%) that did not have a dedicated webpage mentioned a resident aesthetic clinic elsewhere on their residency program website. For each of the eleven programs with space for the resident aesthetic clinic, there was exactly one dedicated webpage. None of the programs with dedicated webpages included photographs of before and after cases, nor procedures performed, nor a listing of resident aesthetic clinic prices. Three of the dedicated webpages included information about faculty participation. Out of the 24 ASAPS endorsed aesthetic fellowship programs, 6 (25%) had a webpage dedicated to the fellow aesthetic clinic. Four of these webpages were comprised of a single webpage, while one program had 6 webpages and one program had 8 webpages. Only one program's webpage included before and after pictures. Four programs (16.7%) included information about faculty participation on the webpage. Five out of the 6 programs had a procedure list on the webpage. DISCUSSION: Resident aesthetic clinic websites are an important tool in recruiting patients as well as medical students. Addressing the lack and quality of such websites may improve recruitment of patients and students to plastic and reconstructive surgery residency programs. As a primary source of information for potential future residents and patients, plastic and reconstructive surgery programs need to maximize the content and utility of their websites.