Bankart lesion refers to a tear of which structure?

• A. Posterior-Inferior Labrum
• B. Anterior-Inferior Labrum
• C. Superior Labrum
• D. Glenoid Capsule

Answer: (B)

Bankart lesion is a tear of the anteroinferior portion of the glenoid labrum with detachment from the rim, usually after an anterior shoulder dislocation. The labrum helps stabilize the shoulder by deepening the glenoid socket, so when the anteroinferior labrum (and often the attached capsule) is torn away, the joint becomes unstable and prone to recurrent dislocations. This distinguishes it from a SLAP lesion, which involves the superior labrum and the biceps anchor, and from posterior-inferior labrum tears that occur with posterior instability. A tear solely of the glenoid capsule isn’t the defining feature; the hallmark is the tearing and detachment of the anteroinferior labrum.