Figure 3: Ultrasonographic outcomes of surgical treatment at follow-up are shown. (a) Partial articular-surface supraspinatus tendon avulsion (Black arrows) (b) Screw penetration into the acromioclavicular joint (arrows). (GT: Greater tuberosity, H: Humeral head, SS: Supraspinatus, Ac: Acromion, CL: Clavicle, asterix: Acromioclavicular joint)