Fig. 4
A 34-year-old male presented with a Q6 distal fracture of the right ulna resulting from a strike injury. (A) Preoperative anteroposterior and lateral radiographs revealed a distal ulna fracture classified as Q6, which exhibited over one-third translation of the fracture surface. (B) One month postoperatively, radiographs indicated a lack of significant callus formation at the fracture site. (C) Three months following the operation, X-rays demonstrated that the internal fixation had failed due to stress concentration