Arthroscopic Bankart repair with inferior glenohumeral ligament tightening using the antegrade suture passer.

Abstract

Arthroscopic repair is the gold standard for treating Bankart lesions, with commonly used portals including the posterior, anterosuperior, and anteroinferior portals. The two anterior portals are established through a safe triangle created by the superior margin of the subscapularis, the inferior margin of the biceps tendon, and the anterior superior edge of the glenoid cavity. However, the disadvantage of this conventional method is that it can lead to crowding of the instruments at the rotator interval, making it difficult to handle. The inferior glenohumeral ligament (IGHL) and its bands play a major role in the pathophysiology of glenohumeral instability. Restoration of the capsular tension by tightening the anterior band of the IGHL is an integral part of a successful Bankart repair, achieved by suturing the labrum at the 6 o'clock position to an anchor placed at the 5 o'clock position of the glenoid, creating a south-to-north capsulolabral shift. Traditionally, this is done using a curved suture passer (Lasso). However, taking a bite using the Lasso through the anteroinferior portal is difficult.