Bilateral Anterior Interosseous Nerve Syndrome: A Case Report

Received: July 10, 2015 Revised: August 12, 2015 Accepted: August 14, 2015 Correspondence to: Jong Hun Baek Department of Orthopaedic Surgery, Kyung Hee University Hospital, Kyung Hee University School of Medicine, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea TEL: +82-2-958-8368 FAX: +82-2-964-3865 E-mail: paeton81@naver.com Anterior interosseous nerve is purely a motor nerve and supplies flexor pollicis longus, flexor digitorum profundus to the index finger, and pronator quadratus. The etiology and treatment option of anterior interosseous nerve syndrome remain controversial. Bilateral involvement of the anterior interosseous nerve have been described rarely; however, we found no reported case of nonsimultaneous bilateral anterior interosseous nerve palsy associated with the entrapment neuropathy. We present the unique case of delayed anterior interosseous nerve syndrome, 3 years 5 months following an identical event in the opposite extremity and literature review.