Outcome evaluation in patients with elbow pathology: Issues in instrument development and evaluation

Measurement of outcome after treatment of elbow pathology has tended to rely on nonstandardized scales and isolated impairment measures, particularly range of motion. This study evaluated the reliability and validity of patient questionnaires with patients with elbow pathology. Patients with a variety of complaints affecting the elbow (n = 70) completed four questionnaires-the American Shoulder and Elbow Surgeons Elbow Form; the Patient-rated …