Arch Hand Microsurg 2018; 23(4): 267-270  
Carpal Tunnel Syndrome with Recurrent Motor Branch Entrapment: A Case Report
Young Woo Kwon1, In Cheul Choi1, Hee-Kyu Kwon2, Jong Woong Park1
Departments of 1Orthopedic Surgery, 2Physical Medicine and Rehabilitation, Korea University Anam Hospital, Seoul, Korea
Correspondence to: Jong Woong Park
Department of Orthopedic Surgery, Korea University Anam Hospital, 73 Inchon-ro, Seongbuk-gu, Seoul 02841, Korea
TEL: +82-2-920-5924, FAX: +82-2-924-2471, E-mail:
Received: August 3, 2018; Revised: September 4, 2018; Accepted: September 7, 2018; Published online: December 1, 2018.
© Korean Society for Surgery of the Hand, Korean Society for Microsurgery, and Korean Society for Surgery of the Peripheral Nerve. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Recurrent motor branch entrapment syndrome is a compressive mononeuropathy of recurrent motor branch of median nerve. It is a rare condition as a cause of thenar muscle wasting and may have different pathogenesis. If such an anatomical variation is the cause, there is a possibility that thenar muscle atrophy remains if only the transcarpal ligament release is performed. We report a 25-year-old male patient with carpal tunnel syndrome with thenar muscle wasting 1 month ago.
Keywords: Carpal tunnel syndrome, Median nerve, Recurrent motor branch

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