Plain x-ray of Barton’s fracture dislocation of wrist

The patient is a 40-year-old man who presented with wrist pain following a fall on an outstretched hand, and found to have a Barton's fracture/dislocation. Image A is an AP radiograph of the right wrist demonstrating an intraarticular fracture of the distal radius (arrow). Image B is a lateral radiograph demonstrating an intraarticular radial fracture with dorsally-displaced radial bone fragments (arrow) and dorsal dislocation of the carpal bones with respect to the radius (arrowhead), consistent with a Barton's fracture/dislocation.