Anatomical Relations
The glenohumeral ligaments include the superior, middle, and inferior ligaments.
The inferior glenohumeral ligament arises from the anterior, middle, and inferior glenoid margin. It extends anteriorly and inferiorly to the inferior and medial aspect of the anatomical neck of the humerus.
Related parts of the anatomy
Structure
The glenohumeral ligaments are fibrous bands and are only truly evident from within the joint. The anterosuperior margin of the inferior glenohumeral ligament is thickened, forming an anterior band. Posteriorly, the articular capsule also has a thickening, known as the posterior band. Between the anterior and posterior bands, the articular capsule is thin and loose, and forms the axillary pouch (or recess).
Function
The inferior glenohumeral ligament reinforces the articular capsule of the glenohumeral joint, particularly the anterior portion of the capsule. Additionally, it is the most important stabilizer of the glenohumeral joint, preventing anterior or inferior dislocation of the humeral head (Burkart and Debski, 2002).
List of clinical correlates
—Glenohumeral joint dislocation
References
Burkart, A. C. and Debski, R. E. (2002) 'Anatomy and function of the glenohumeral ligaments in anterior shoulder instability', Clin Orthop Relat Res, (400), pp. 32-9.
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Glenohumeral Ligaments
The IGHL is the major stabilizer of the glenohumeral joint and is comprised of three components: the anterior band, the axillary pouch, and the posterior band (O'Brien et al., 1990).
