Fig. 2
From: Ulna hook plate osteosynthesis for ulna head fracture associated with distal radius fracture
Nonunion after ulna plate osteosynthesis in an old patient. A Preoperative radiograph of a 93-year-old female presenting a Biyani type IV left distal ulna fracture combined with a type C distal radius fracture. B Immediate postoperative radiograph showing left wrist osteosynthesis with ulna hook plate and radius volar plate. C One-year postoperative radiograph showing ulna and radius fracture nonunion. D Radiograph after ulna head resection (Darrach) due to ulna nonunion