Fig 9.

Dynamic evaluation of the anterosuperior capsule at the mimic position in the throwing motion. (A) Resting position with a limb positioner. (B) Arthroscopic findings of the right shoulder at resting position from the posterior viewing portal: The nylon is sutured to the middle glenohumeral ligament as a mark. (C) Dynamic evaluation of the anterosuperior capsule at the abducted external rotation position without a limb positioner. (D) Arthroscopic findings of the right shoulder at the abducted external rotation position from the posterior viewing portal: The nylon suture shows drastic lateral and cranial movements. (G, glenoid; HH, humeral head.)