Explanation:
Over-tightening the superior labrum, particularly placing anchors posterior to the biceps anchor, captures the capsular structures and restricts external rotation in abduction. This is a common cause of postoperative stiffness in SLAP repairs, particularly in overhead throwing athletes. Reference: Burkhart SS et al., 'SLAP lesions in association with complete tears of the undersurface of the rotator cuff...', Arthroscopy (2003).