Computed tomographic diagnosis of distal radio-ulnar joint disruption.

Distal radio-ulnar joint dislocation may be a difficult diagnosis using standard wrist radiographs. We report a patient in whom standard films did not convincingly demonstrate a dislocation which was well seen with computed tomographic scans of the wrist. Computed tomography may be the method of choice for demonstrating distal radio-ulnar joint dislocation when this is suspected clinically but not seen with standard films.