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Superior Transverse Scapular Ligament
Connective Tissue

Superior Transverse Scapular Ligament

Ligamentum transversum superius scapulae

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Anatomical Relations

The superior transverse scapular ligament attaches from the base of the coracoid process of the scapula to the medial border of the scapular notch, thus converting the scapular notch into a foramen. This foramen allows for the passage of the suprascapular nerve (C5-C6) from the brachial plexus to supply the supraspinatus and infraspinatus muscles. The suprascapular artery and vein traverse across the superior aspect of the superior transverse scapular ligament.

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Structure

The superior transverse scapular ligament is a thin fibrous band. The ligament may become ossified (1.5-12.5% of the population), thus narrowing the passage for the suprascapular nerve through the foramen.

Function

The superior transverse scapular ligament is a bounding ligament of the scapula and, therefore, strengthens the superior aspect of the scapula.

List of clinical correlates

—Suprascapular nerve entrapment syndrome

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