Rehabilitative Ultrasound Imaging: Measurements of Articular Movement of the Shoulder

Stabilization of the glenoid fossa with movement of the humerus using varying degrees of force as applied by a physical therapist. Subject is positioned with the shoulder in 55 degrees of abduction and 30 degrees of horizontal adduction. Manual force is applied by a physical therapist on the proximal humeral head moving the humeral head posterior, inferior or lateral (distraction). An ultrasound transducer placed over the anterior shoulder joint provides imaging of the humeral head and the glenoid fossa. This manual intervention is repeated three times in each direction on each arm.