Radiographs typically show a short, curved radius with a greater volar inclination of its distal segment, which determines a widening of the distal radius-ulnar joint. There is also an exaggerated ulnar inclination of the articular surface of the distal radius, with dorsal subluxation of the ulna and triangular deformity of the carpus. The carpal bones form a wedge in the triangular deformity created by the distal radius, with the lunate at the apex.