Fig. 6

Case 28. A case of stage IIB Ewing’s sarcoma in humeral shaft. a and b Anteroposterior X-rays before and after neoadjuvant chemotherapy. c Allograft for repairing bone defect was filled with bone cement and d fixed with steel plate in advance. e The allograft was combined with the remaining humeral head and distal humerus, and the distal host–donor junction was reinforced with a short plate. f and g Anteroposterial X-rays were performed at 7 days and 9 months postoperatively, respectively