Preserved finger flexion following high median nerve transection: a rare case report and review of literature.

ABSTRACT:

Background

High-level complete transection of the median nerve will impair the flexion function and sensation of the thumb and index finger, and will also result in weakened wrist flexion strength. In rare cases, atypical clinical manifestations may arise, potentially due to ulnar-to-median nerve anomalies, such as Marinacci communication (MC), or the function of muscles directly innervated by ulnar nerve branches.

Case presentation

A 52-year-old male sustained a chainsaw injury to his left elbow and forearm, resulting in complete transection of the median nerve. Despite this, he retained partial finger flexion, with muscle strength reaching grade IV in the 3rd-5th fingers on postoperative day one. Marinacci communication, a rare anatomical variant, may explain the preserved

SUBMITTER: Zhu SY 

PROVIDER: S-EPMC11892143 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature