The soft ware STATA / SE 8.0 is used for management, statistics and analysis of the data. Results: Curettage of tumor using high-speed burr and autograft is applied for 49 cases: healing of bone graft 100%, limb functions good in 87, 8%, quite good in 10, 2% and bad in 2% due to desarticulation for repititive recurrences; recurrence ratio 6, 1%.