Fig. 1.

(Left) Palmar plating for intra-articular distal radius fracture. (Center left) 3D CT indicating a displaced volar rim fragment. (Center right) Intra-articular fracture displacement of the sigmoid notch in the coronal plane. (Right) Dorsal subluxation of the ulnar head relative to the sigmoid notch malunion. CT, computed tomography; 3D, three-dimensional.