Fig. 7

Case 20. A case of stage IIB fibrosarcoma in trunk of ulna. a Preoperative anteroposterior and lateral X-ray showed that the tumor was located in the diaphysis with obvious expansion. b Gross specimens of resected tumors and c the allograft for repairing bone defects. d Elastic intramedullary nails and long segmental reconstruction plates were used to secure the allograft to the host. e Anteroposterior and lateral X-rays at 3 months postoperatively suggested that the allograft was firmly fixed