• Josef N Tofte, Edward O Rojas, Christopher A Anthony, Andrew J Holte, Alexander Volkmar, Matthew D Karam, Lindsey S Caldwell, and Ericka A Lawler.
• University of Iowa Hospitals and Clinics, Department of Orthopaedics and Rehabilitation, Iowa City, Iowa.
• J Surg Educ. 2019 Nov 1; 76 (6): 1663-1668.

ObjectiveThe purpose of this study was to (1) examine the feasibility of intraoperative point of view video while performing open and endoscopic carpal tunnel release (CTR), (2) define surgical segments of CTR, and (3) describe the duration of various surgical steps of open versus endoscopic CTR in a teaching setting.DesignFellowship trained hand surgeons reached consensus on surgical segments for CTR. Adult patients 18 and older previously indicated for CTR in clinic were eligible. Head-mounted point-of-view cameras were worn during endoscopic and open CTR by resident surgeons. Video was reviewed to determine segment duration. Independent sample t tests were used for comparison of duration by technique with statistical significance set as p < 0.05.SettingUniversity of Iowa Hospitals and Clinics; 200 Hawkins Dr, Iowa City, IA 52242; Tertiary Academic Medical Center.ParticipantsOrthopedic Surgery Residents and Orthopedic Surgery Faculty.ResultsSurgical segments were defined as incision, dissection of superficial soft tissue structures, transection of the carpal ligament, and surgical incision closure. Twelve of 14 video capture events yielded data. In the teaching setting, the average duration of endoscopic CTR was 609.5 seconds (±111.07) versus 547.75 seconds (±82.06) for open with p value = 0.406. No surgical segments were significantly different. Transition time from dissection to ligament transection differed significantly (p = 0.004) between endoscopic (46.88 seconds ± 19.19) and open (9.0 seconds ± 7.90) CTR. Transition time between ligament transection and closure was significantly different (p = 0.029) among endoscopic (50.5 seconds ± 15.0) and open (26.25 seconds ± 2.99) CTR.ConclusionsPoint-of-view video capture is feasible for the capture of video during a common hand surgery procedure. A method for managing device battery power is necessary for future applications. CTR can be defined as, and described in, individual procedure segments potentially useful for surgical education as well as efficiency improvements. Identification of surgical segments may aid the development of better objective tools for the assessment of surgeon skill and competency for common orthopedic procedures.Copyright © 2019 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

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