Shoulder surgery: Bankart Procedure
“The operation involves reattachment and tightening of the torn labrum and ligaments of the shoulder. This usually done using sutures and small bone anchors.
The glenohumeral joint provides 60% of shoulder motion. It is a modified 'ball and socket joint'. The humeral head moves in a complex manner over the glenoid with a combination of rolling, gliding and sliding actions. The labrum is wedge-shaped and attaches almost completely around the edge of the glenoid. This is important because the glenoid socket is so flat and shallow that the ball of the humerus does not fit tightly. The labrum creates a deeper cup for ball of the humerus to fit into. This makes a contribution to the stability of the joint.
The labrum may become detached in patients with dislocations of the shoulder causing a Bankart lesion.”