From June, 1965 through August, 1994, 260 cases of large bone defects were repaired by preserved bones. The donor bones were obatined from the long bones of the amputated limbs from trauma and the bones, such as the femoral head, patella, ribs, etc. removed from operations. The donor bones were preserved in 0.1 per cent merthiolate or 75 per cent alcohol and were stored at 4 degrees centigrade. Two patients had bad reactions which, however, did not influence the consolidationof the bone grafts. The patients were followed up for an average of 4 years and5 months, and all the bone grafts had solid consolidation with the host bones. There was no recurrence in the tumor patients.
The defatted whole thickness skin flap from the large sized avulsed skin was sutured back to the original wound of the extremity in 366 cases. The patients were followed up for an average of 12 years and 3 months. The functions of the extremities were good, and the surface of the grafted area was smooth, with good luster and good looking. This type of repair provided a high survival rate, simple and less traumatic. The avulsed skin even had abrasion or mild contusion could still be used. The peculiarities of the large sized skin avulsion and the advantages and disadvantages of other reparative methods were discussed.