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Peroneal tendon dislocation with a low-lying peroneus brevis muscle belly: a case report and literature review
Arthrosc Orthop Sports Med 2022;9:25-28
Published online May 1, 2022;  https://doi.org/10.14517/aosm22007
© 2022 Korean Arthroscopy Society and Korean Orthopedic Society for Sports Medicine.

Gun-Woo Lee1, Keun-Bae Lee1,2

1Department of Orthopedic Surgery, Chonnam National University Hospital, 2Department of Orthopedic Surgery, Chonnam National University Medical School, Gwangju, Korea
Correspondence to: Keun-Bae Lee, https://orcid.org/0000-0003-3808-2649
Department of Orthopaedic Surgery, Chonnam National University Hospital, 42 Jebongro, Dong-gu, Gwangju 61469, Korea. Tel: +82-62-220-6334, Fax: +82-62-225-7794, E-mail: kbleeos@jnu.ac.kr
Received March 30, 2022; Revised April 20, 2022; Accepted April 27, 2022.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Peroneal tendon dislocation is an uncommon injury that is sometimes associated with peroneal anomalies. The low-lying peroneus brevis muscle belly, defined as an abnormal distal muscle belly extension into the retromalleolar groove, is rarely reported and may allow peroneal tendon dislocation by stretching out the superior peroneal retinaculum. Here we report the case of a 20-year-old male patient with peroneal tendon dislocation combined with a low-lying peroneus brevis muscle belly. Peroneal tendon dislocation was treated with superior peroneal retinaculum reinforcement and abnormal muscle belly debulking. The clinical outcome was satisfactory and showed no peroneal tendon dislocation recurrence 9 months postoperatively.
Keywords : Peroneal tendon; Dislocation; Peroneus brevis; Low-lying muscle belly
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