Grashey method, a positioning method for producing true anteroposterior x-ray images of the scapulohumeral joint. The patient faces the x-ray tube with the affected shoulder 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, and the central ray is directed perpendicularly through the affected shoulder joint.
