Figure 1.

Anteroposterior (a), oblique (b), and lateral (c) injury radiographs of a comminuted distal radius fracture with a concomitant unstable metaphyseal distal ulna fracture. Note the sigmoid notch and distal radioulnar joint involvement, and the palmar–rotatory displacement of the ulna articular head fragment. One year postoperative anteroposterior (d), oblique (e), and lateral (f) radiographs demonstrate osseous union. There is no evidence of ulnar stump instability, radioulnar impingement, or carpal translocation following the distal ulna resection.