Glenoid labrum

Dr Henry Knipe et al.

The glenoid labrum is a fibrocartilaginous structure that attaches as a rim to the articular cartilage of the glenoid fossa and serves to deepen and increase the surface area. In this capacity, i acts as a static stabiliser of the glenohumeral joint, preventing dislocation and subluxation at the extremes of range of motion. 

The glenoid labrum is approximately 4 mm thick and is round or triangular in cross section. 


The capsule of the glenohumeral joint attaches to the glenoid labrum. The glenoid labrum is continuous with:

  • superiorly: tendon of the long head of biceps brachii
  • anteriorly:
    • anterior band of the inferior glenohumeral ligament
    • middle glenohumeral ligament (variably)

See main article: glenohumeral joint.

Upper limb anatomy
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Article information

rID: 27109
Section: Anatomy
Synonyms or Alternate Spellings:

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