We report a case of Ewing's sarcoma treated by free auto-fibular grafts. A 13-year-old girl experienced pain in her left leg. A plain radiograph showed thickened cortex over almost the entire tibia. The light microscopic features of a biopsy sample were those of a small round cell tumor. The patient received combined intensive multidrug chemotherapy before surgery. Local wide resection with reconstruction using a free auto-fibular bone graft and a intramedullary nail was performed. Plain radio-graph made one month after grafting showed fusion of the fibula. The patient was able to walk without any support in daily life 12 months after surgery.
