Journal Article Frozen shoulder arthroscopic capsular release coracohumeral ligament range of motion Adhesion Atraumatic rotator cuff tears Japan Range of motion Rotator cuff disorder Shoulder Shoulder stiffness Simple Shoulder Test Subscapularis Ultrasonography coracohumeral ligament adduction manipulation adduction restriction adduction test clinical outcome cross-cultural comparison frozen shoulder glenohumeral joint joint capsule patient-reported outcome measures post-traumatic proximal humeral fracture superior capsule validity