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

PM R. 2015 Aug;7(8):889-894. doi: 10.1016/j.pmrj.2015.03.009. Epub 2015 Mar 13.


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.

Publication types

  • Case Reports

MeSH terms

  • Arthroscopy / adverse effects*
  • Decompression, Surgical / methods*
  • Humans
  • Male
  • Middle Aged
  • Musculocutaneous Nerve*
  • Nerve Compression Syndromes / diagnosis
  • Nerve Compression Syndromes / etiology*
  • Nerve Compression Syndromes / surgery
  • Postoperative Complications / diagnosis
  • Postoperative Complications / etiology*
  • Postoperative Complications / surgery
  • Reoperation
  • Shoulder Joint / innervation
  • Shoulder Joint / surgery*
  • Tendinopathy / surgery*