Garth method [William P. Garth, American orthopedic surgeon] , a positioning method for producing x-ray images of the scapulohumeral joint and identifying shoulder dislocations, scapular fractures, and bony defects involving the humeral head. The patient faces the x-ray tube with the affected shoulder joint centered to the midline of the image receptor (IR). The affected elbow is flexed and the forearm is placed across the patient’s chest. The opposite shoulder is angled 45 degrees away from the IR. The central ray is directed at a 45-degree angle toward the patient’s feet and passes through the affected shoulder joint.
