Ultrasonography appears to have a strong ability to detect shoulder dislocations among patients who present to the ED with a clinical impression of such an event, according to an observational study. Ultrasonography demonstrated results that were identical to those found on radiography. It also had a sensitivity of 100% in detecting shoulder dislocation and assessment of complete reduction of the shoulder joint.

Abstract: Annals of Emergency Medicine, March 13, 2013 (online).