Reliability, Validity, and Responsiveness of the American Shoulder and Elbow Surgeons Subjective Shoulder Scale in Patients with Shoulder Instability, Rotator Cuff Disease, and Glenohumeral Arthritis

The use of outcome instruments with psychometric properties that have been vigorously established is essential. The American Shoulder and Elbow Surgeons subjective shoulder scale demonstrated overall acceptable psychometric performance for outcomes assessment in patients with shoulder instability, rotator cuff disease, and glenohumeral arthritis.