Posttraumatic Proximal Radioulnar Synostosis after Closed Reduction for a Radial Neck and Olecranon Fracture

Figure 4

Left elbow radiographs at two years after injury. Maximum extension and pronation (a) and flexion and supination (b) are shown. On physical examination, she had full range of motion in extension and flexion, but pronosupination was entirely lost. All radiographs show synostosis of the proximal radioulnar joint (solid arrows in (a) and (b)) and fracture deformity from the previously healed proximal radial fracture. The olecranon fracture is healed (hatched arrows in (a) and (b)).

(a)

(b)