Radiological investigation of recurrent dislocation of the shoulder.

Various methods of radiological investigation of recurrent dislocation or subluxation of the shoulder are described and their merits compared. Magnetic resonance imaging is expensive and its role not yet well established in the evaluation of shoulder instability. Double contrast arthrography still provides an adequate examination of the shoulder joint. If the glenoid labrum needs to be better defined, this procedure should be followed by computerised tomography.