Basic Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Nov 18, 2022; 13(11): 978-985
Published online Nov 18, 2022. doi: 10.5312/wjo.v13.i11.978
Anatomic relationship of extensor indicis propius and extensor digitorum communis: Implications for tendon transfer
Joanne Zhou, Christopher Frey, Nicole Segovia, Jeffrey Yao
Joanne Zhou, Christopher Frey, Nicole Segovia, Jeffrey Yao, Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford University, Redwood city, CA 94063, United States
Author contributions: Zhou J contributed to study design, dissections, statistical analysis, and writing the manuscript; Frey C contributed to study design, dissections, statistical analysis, and writing the manuscript; Segovia N carried out statistical analyses and assisted with manuscript revisions; Yao J contributed to study design and manuscript revisions.
Institutional review board statement: This study was deemed exempt from Institutional Review Board Approval as only donated cadaveric specimens were used.
Informed consent statement: This study was deemed exempt from informed consent statement as only donated cadaveric specimens were used.
Conflict-of-interest statement: The authors have nothing to disclose.
Data sharing statement: The statistical methods of this study were reviewed by our research support center, and the statistical methods and techniques mentioned are appropriate for the research.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Joanne Zhou, MD, Staff Physician, Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford University, 450 Broadway Street Pavilion A 2nd Fl MC 6120, Redwood City, CA 94603, United States. zhoujy@stanford.edu
Received: June 23, 2022
Peer-review started: June 23, 2022
First decision: August 22, 2022
Revised: September 6, 2022
Accepted: October 19, 2022
Article in press: October 19, 2022
Published online: November 18, 2022
Core Tip

Core Tip: We found that extensor indicis proprius (EIP) was consistently ulnar to extensor digitorum communis to the index in 96.5% of specimens at the distal extensor retinaculum. The EIP had a greater circumference in 76% (22/29) of specimens at the distal extensor retinaculum. This research contributes to the body of knowledge on extensor tendon anatomy and facilitates the smaller incisions and dissection of EIP needed for tendon transfers.