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Supraglenoid Tubercle

tuberculum supraglenoidale

The supraglenoid tubercle is a rough bony eminence at the superior rim of the glenoid cavity, just above the articular surface and at the root of the coracoid process. It provides the origin of the long head of the biceps brachii tendon. The tendon exits the glenohumeral joint at the supraglenoid tubercle, runs within the intraarticular space, and exits through the rotator cuff interval at the bicipital groove.

Region: Shoulder

Clinical Relevance

Clinical Notes

The supraglenoid tubercle is the anchor point for superior labrum anterior-posterior (SLAP) tears, which involve detachment of the superior labrum and the long head biceps tendon anchor from this tubercle. SLAP tears are classified I-IV by severity and are common in overhead athletes (throwing, swimming, tennis). Type II SLAP tears (complete detachment) are repaired by arthroscopic anchor suturing of the labrum and tendon back to the tubercle. The O'Brien and Speed tests assess biceps anchor pathology.

Pathology

Common Injuries & Conditions

SLAP Tear at Supraglenoid Tubercle

Superior labrum detachment from the supraglenoid tubercle (Type II SLAP) produces deep posterior shoulder pain with overhead activities and a positive O'Brien test; arthroscopic repair places bone anchors in the tubercle to reattach the labrum and restore biceps anchor integrity.