Lateral Antebrachial Cutaneous Nerve Entrapment After Shoulder Arthroscopy: A Case Report

• Published in: PM & R Vol. 7; no. 8; pp. 889 - 894
• Main Authors: Yung, Herbie, MD, Lagemann, Gerritt M., MD, Lin, Albert, MD, Orebaugh, Steven L., MD, Cortazzo, Megan H., MD
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01-08-2015
• Subjects: Arthroscopy - adverse effects; Decompression, Surgical - methods; Humans; Male; Middle Aged; Musculocutaneous Nerve; Nerve Compression Syndromes - diagnosis; Nerve Compression Syndromes - etiology; Nerve Compression Syndromes - surgery; Physical Medicine and Rehabilitation; Postoperative Complications - diagnosis; Postoperative Complications - etiology; Postoperative Complications - surgery; Reoperation; Shoulder Joint - innervation; Shoulder Joint - surgery; Tendinopathy - surgery
• ISSN: 1934-1482; 1934-1563
• DOI: 10.1016/j.pmrj.2015.03.009

The lateral antebrachial cutaneous nerve (LABCN) is a distal sensory branch of the musculocutaneous nerve that innervates the radial aspect of the forearm. Cases of LABCN injury from trauma and chronic compression have been reported. A case of musculocutaneous nerve injury after a biceps tenodesis has also been reported. This case report describes an LABCN injury and forearm pain after a biceps tenodesis procedure. Using a multifaceted diagnostic approach of electrodiagnostics and magnetic resonance neurography, the site of compression was appropriately localized. The patient ultimately achieved relief after a surgical decompression.