Anterior coracoscapular ligament and suprascapular nerve entrapment

✍ Scribed by B.W. Avery; F.M. Pilon; J.K. Barclay

• Book ID: 101765874
• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 498 KB
• Volume: 15
• Category: Article
• ISSN: 0897-3806
• DOI: 10.1002/ca.10058

✦ Synopsis

Abstract

A reduction in the height of the suprascapular foramen may predispose to entrapment of the suprascapular nerve. In this study, 16 of 27 cadavers (60%) demonstrated a heretofore unreported ligament located on the anterior aspect of the suprascapular foramen. In 11 of the 27 cadavers (41%), the ligament was observed bilaterally. The ligament decreased the foraminal height from the normative value of 5.6 ± 0.4 to 2.3 ± 0.4 mm (mean ± SEM). Because this ligament, for which we propose the term anterior coracoscapular ligament (ACSL), substantially narrows the suprascapular foramen, it should be considered as a possible etiologic factor in suprascapular nerve entrapment. Clin. Anat. 15:383–386, 2002. © 2002 Wiley‐Liss, Inc.