a defect in the shoulder capsule and labrum caused by a shoulder dislocation. The defect is located at the anteroinferior border of the glenoid. The defect is referred to as a bony Bankart lesion when, in addition to the soft tissue defect, a piece of bone is missing from the anteroinferior glenoid.
In orthopaedics, a Bankart lesion is an injury of the anterior glenoid labrum due to repeated (anterior) shoulder dislocation. It is an indication for surgery and often accompanied by a Hill-Sachs lesion, damage to the posterior humeral head.