Fig. 1AP and lateral radiographs of the forearm show fracture of the ulnar shaft and displaced comminuted fracture of the radial neck.
Fig. 2Pre-operative AP and lateral radiographs of the forearm show a normal distal radioulnar joint at 6 weeks after injury.
Fig. 3Immediate post-operative radiographs show a 6 mm migration of the radius proximally at the distal radioulnar joint.
Fig. 4Post-operative one year radiographs show solid union of the ulnar shaft fracture but 15 mm migration of the radius proximally at the distal radioulnar joint and widening of the distal radioulnar gap.