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Updated: Dec 12, 2025

Metacarpal Small Incision for Carpal Tunnel Syndrome
Published on: April 5, 2024
Unusual Triad of Bifid Median Nerve, Persistent Median Artery, and Aberrant Muscle Causing Carpal Tunnel Syndrome: A
Anil Dhal1, Saket Prakash, Pulkit Kalra
1Department of Orthopaedics, Maulana Azad Medical College and Lok Nayak Hospital, New Delhi, India.
Case:
A 15-year-old boy presented with intermittent pain, in the left nondominant hand, for the past 3 years. He recently developed numbness in the radial 3 and a half digits. Ultrasonography revealed a bifid median nerve (BMN) with a persistent median artery (PMA). An open carpal tunnel release was performed, which revealed an accessory lumbrical muscle in addition to the BMN and a PMA.
Conclusion:
The surgeon should be aware of the possible coexistence of 3 anomalous structures while performing carpal tunnel release in a young patient.
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