Patient is in lateral decubitus position, and glenoid is oriented horizontally. A, Superior part of shoulder joint with biceps tendon inserting into superior labrum. Humeral head is superior right, and glenoid is inferior. B, Superior glenohumeral ligament and subscapularis tendon on right with middle glenohumeral ligament inferiorly. C, Normal sublabral hole. D, Buford complex showing insertion of middle glenohumeral ligament directly into biceps anchor (see text). E, Middle cord variant of glenohumeral ligament crossing subscapularis tendon. F, Inferior pouch. Glenohumeral ligaments and labrum are seen. G, Capsular attachment to humeral head observed through inferior pouch. H, Rotator cuff evaluated for fraying, partial tears, or calcification. Supraspinatus tendon is seen superiorly with biceps tendon in center of picture. I, Posterior articular surface, posterior labrum, posterior pouch, and posterior capsule observed with arthroscope inserted anteriorly. J, Posterior band of inferior glenohumeral ligament. K, Anterior band of inferior glenohumeral ligament observed from anterior portal. Humeral insertion of ligament is superior. L, Capsulolabral attachment to glenoid observed through anterior portal. M, View of subacromial space with cuff below and acromion above.