Nonmetastatic osteosarcoma of the extremity with pathologic fracture at presentation - Local and systemic control by amputation or limb salvage after preoperative chemotherapy

To determine whether a pathologic fracture in osteosarcoma of long bones has prognostic importance, and limb salvage can be safely performed in such cases, we reviewed the surgical treatment and oncologic results in 46 patients with nonmetastatic osteosarcoma of the extremity and pathologic fracture at presentation who had been treated in our Institution with neoadjuvant chemotherapy, between 1983 and 1999. Neoadjuvant chemotherapy was given according to 6 consecutive protocols. Surgery consisted of limb salvage (34 patients), amputation (11 patients) and rotationplasty (1 patient). The average follow-up was 11 (3-20) years. 28 patients remained continuously disease-free, 17 patients relapsed and 1 died of chemotherapy-related toxicity. Despite the high rate of limb salvage, only 2 local failures occurred, 1 after amputation and 1 after limb salvage. The 5-year disease-free survival and overall survival rates were 59% and 65%, respectively, with no differences between amputated and resected patients. These results are similar to those obtained in 689 contemporary patients having an osteosarcoma without a pathologic fracture treated in our Institution, and using the same protocols for chemotherapy. We conclude that with neoadjuvant chemotherapy, osteosarcoma patients presenting with a pathologic fracture can be surgically treated like those with no fracture, and that limb salvage procedures do not increase the risk of local recurrence or death of these patients.