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Anteroinferior Glenohumeral Ligament

- See:
    - stabilizers of the shoulder 
    - shoulder capsule

- Discussion:
    - originates as a portion of fibrous glenoid labrum anteroinferiorly;
    - there are two subdivisions of this ligament: an anterior and posterior bands along with the intervening axillary pouch;
    - antero-inferior portion of normal capsule, inferior glenohumeral ligament primary restraint to anteior dislocation;
           - primary restraint to anterior and anteroinferior instability;
           - limits anterior translation in abduction and external rotation;
    - posterior band limits posterior translation in abduction and internal rotation;
    - avulsion of this complex results in bankart lesion, which is essential lesion in recurrent anterior dislocating shoulders;
    - IGHL must fail for anterior dislocation to occur;
           - primary restraint to anterior and anteroinferior instability;
           - at 90 deg abduction, inferior glenohumeral lig developed most strain.
    - inferior glenohumeral ligaments limits external rotation at 45 to 90 deg of abduction;
    - w/ body upright, coracohumeral & middle glenohumeral ligaments play important roles in resisting inferior translation

The anatomy and histology of the inferior glenohumeral ligament complex of the shoulder. 

The anterior band of the inferior glenohumeral ligament.  Assessment of its permanent deformation and the anatomy of its glenoid attachement

Effects of repetitive subfailure strains on the mechanical behavior of the inferior glenohumeral ligament.

Reconciling Arthroscopic and Anatomic Morphology of the Humeral Insertion of the Inferior Glenohumeral Ligament.