Cubital Tunnel Syndrome by Anconeus Epitrochlearis in an Adolescent

Sang-Uk Lee; Juyeob Lee; Sun Young Joo

doi:10.4055/jkoa.2014.49.4.312

Journal List > J Korean Orthop Assoc > v.49(4) > 1013314

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Lee, Lee, and Joo: Cubital Tunnel Syndrome by Anconeus Epitrochlearis in an Adolescent

Case Report

Journal of the Korean Orthopaedic Association 2014; 49(4): 312-315.

Published online: 27 August 2014

DOI: https://doi.org/10.4055/jkoa.2014.49.4.312

Cubital Tunnel Syndrome by Anconeus Epitrochlearis in an Adolescent

Sang-Uk Lee, M.D., Juyeob Lee, M.D., Sun Young Joo, M.D.

Department of Orthopedic Surgery, The Catholic University of Korea School of Medicine, Seoul, Korea.

Correspondence to: Sun Young Joo, M.D. Department of Orthopedic Surgery, The Catholic University of Korea, Incheon St. Mary's Hospital, 56 Dongsu-ro, Bupyeong-gu, Incheon 403-720, Korea. TEL: +82-32-280-5881, FAX: +82-32-505-7795, sjoo@catholic.ac.kr

Received 28 July 2013 Revised 13 November 2013 Accepted 13 February 2014

(open-access):

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

Compression neuropathy of the ulnar nerve due to anconeus epitrochlearis muscle is rare in adolescents. It is usually known that the hypertrophied muscle in adult or weightlifting athletes compresses the ulnar nerve. There were only few case reports in children and adolescent relevant to athletic activities. In this case, a non-athlete 15-year-old girl developed compression ulnar nerve neuropathy caused by an anconeus epitrochearis muscle. This case is remarkable as an anconeus epitrochearis muscle is uncommon in non-athlete children and adolescent since a literature review revealed no previous report.

Keywords: anconeus epitrochlearis, cubital tunnel syndrome, adolescent

Figures and Tables

Figure 1

(A) The ultrasonograph of right elbow demonstrated anconeus epitrochlearis muscle (asterisk) overlying the ulna nerve (arrow). (B) Transverse T1-weighted magnetic resonance imaging of the elbow showed ulnar nerve (white arrow) compressed by anconeus epitrochlearis muscle (black arrow). ME, medial epicondyle; O, olecranon.

Figure 2

(A) Intraoperative finding revealed anconeus epitrochlearis muscle above the cubital tunnel (arrow). The ulnar nerve compressed by the epitrochleoanconeus muscle. (B) After resection of the anconeus epitrochlearis muscle, severe adhesion of the ulnar nerve to the adjacent tissue was noted. (C) Subfascial anterior transposition of the ulnar nerve was performed.

References

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