Transfer of brachialis branch of musculocutaneous nerve for finger flexion: Anatomic study and case report

Yudong Gu, Huan Wang, Liyin Zhang, Gaomeng Zhang, Xin Zhao, Lin Chen

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Abstract

Based on an anatomic study, a transfer of the brachialis muscle branch of the musculocutaneous nerve (BMBMCN) to finger flexor functional fascicles of the median nerve was designed. Preliminary results of clinical application of this new procedure are reported. Dissection of 32 cadaver upper limbs revealed that BMBMCN derives from the musculocutaneous nerve at the distal 1/3 upper arm level. Mostly it is of single-branch type, with an average dissectable length of 5.2 cm. At this level, functional fascicles of finger flexors are located at the posterior 1/3 of the median nerve. BMBMCN can be directly coapted to these finger flexion fascicles. In one case of brachial plexus lower trunk injury, this neurotization procedure was done. No impairment of elbow flexion and wrist flexion was found postoperatively. Recovery of finger and thumb flexion was seen 1 year postoperatively. This neurotization is safe and effective for treating lower trunk injuries.

Original languageEnglish (US)
Pages (from-to)358-362
Number of pages5
JournalMicrosurgery
Volume24
Issue number5
DOIs
StatePublished - Oct 14 2004

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ASJC Scopus subject areas

  • Surgery

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