Loose body within the glenohumeral joint in recurrent anterior dislocation: CT demonstration.

A loose body within the glenohumeral joint in a patient with chronic anterior dislocation and recent trauma that prevented successful reduction of the dislocated shoulder was demonstrated by CT. Although the use of CT with arthrography has been reported in patients with recurrent dislocations and unstable shoulders, this is the first such reported demonstration using CT without contrast medium of a loose body preventing reduction.