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Ulnar Nerve Compression due to Anconeus Epitrochlearis

A Case Report and Review of the Literature

Cammarata, Michael J. BS1; Hill, J. Bradford MD1; Sharma, Sheel MD1

doi: 10.2106/JBJS.CC.18.00189
Case Reports
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Disclosures

Case: A 32-year-old right-handed surgeon presented with a history of intermittent pain at the right medial epicondyle, a mild Tinel's sign, and dysesthesia in the ulnar nerve distribution. Dynamic ultrasound demonstrated a hypertrophic anconeus epitrochlearis bilaterally, and chronic irritation of the ulnar nerve. Anterior release with myectomy of the accessory muscle was performed. No compressive symptoms were present at 1-year follow-up.

Conclusions: The anconeus epitrochlearis is an often-underappreciated cause of ulnar nerve compression that can lead to significant functional impairment. Dynamic ultrasound is an excellent diagnostic modality, and anterior release with myectomy provides durable relief with minimal downtime.

1Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health, New York, New York

E-mail address for S. Sharma: Sheel.Sharma@nyumc.org

Investigation performed at Hansjörg Wyss Department of Plastic Surgery, New York University Langone Health, New York, New York

Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSCC/A792).

Copyright © 2019 by The Journal of Bone and Joint Surgery, Incorporated
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