The inferior glenohumeral ligament is the most important shoulder ligament for anterior stability, forming a hammock of anterior band, axillary pouch, and posterior band under the humeral head in the abduction-external rotation position. The anterior band is the structure torn from the glenoid (Bankart lesion) in anterior shoulder dislocation and repaired in Bankart surgery.
| Origin | Inferior glenoid labrum from the 2 to 8 o'clock position |
|---|---|
| Insertion | Inferior humeral neck below the lesser and greater tubercles |
| Actions | Primary restraint against anterior shoulder dislocation in the abducted and externally rotated position; forms a hammock under the humeral head |
|---|
The IGHL anterior band Bankart repair reattaches the torn ligament to the glenoid rim using suture anchors. Failure of repair from overtightening produces posterior shoulder capsule tightness contributing to posterior impingement and SLAP tears in throwers.
IGHL anterior band avulsion from the glenoid labrum in shoulder dislocation managed with arthroscopic suture anchor repair.
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