Fig. 5

A 7-year-old boy classified type IV injury in right elbow. a A-P view of X-ray film show fracture in coronal plane of olecranon with displacement less than one third of ulna (arrow) associated with radial neck fracture with angulation less than 60°. b, c A-P and lateral view of X-ray film show this boy was treated with close reduction and internal fixation with K-wire for olecranon and close reduction and internal fixation with ESIN for radial neck, but the broad of olecranon in coronal plane was not corrected (arrow). d Three months postoperation, A-P view of X-ray film show the radial neck fracture healed but malunion of olecranon. e Six months postoperation, A-P view of X-ray film show radial head subluxation could be observed after the ESIN removed because of the angulated malunion of olecranon when pronate, only pronation of right forearm was limited