Corresponding Author

Mohamed E. Elsebaey

Subject Area

Anatomy, Peripheral nerves

Document Type

Case Report


Background Data: Musculocutaneous nerve (MCN) is among the nerves of the anterior compartment of the arm, and it is a mixed nerve derived from the lateral cord of the brachial plexus. Here, in this study, the patient had avulsion of the upper roots of the brachial plexus and was prepared to undergo nerve transfer surgery to innervate the MCN to restore the elbow flexion; its absence was the surprise and the challenge at the same time.

Purpose: This study aims to describe a rare variant of MCN (absence).

Study Design: This is a case report.

Case Report: A 41-year-old male patient had a brachial plexus injury after a road traffic accident (RTA). He presented with loss of elbow flexion and prepared for performing neurotization of MCN. The surgical intervention was performed under general anesthesia without using neuromuscular blocking agents, and the absence of the MCN was noted.

Conclusion: Knowledge of the MCN variant is essential, especially if it is the target nerve of the surgical intervention.


Musculocutaneous nerve variant, nerve transfer, brachial plexus surgery