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OUTCOME FOLLOWING PRESENTATION WITH A PATHOLOGIC FRACTURE IN OSTEOSARCOMA.



Abstract

Two hundred and forty-one patients with extremity osteosarcoma presented to our institution between 1989 and August 2002, thirty-six of whom had a pathologic fracture. There were twenty-five limb salvage surgeries and ten primary amputations, with three limb salvage surgeries requiring secondary amputations. One patient had an unresectable tumor and was treated palliatively. At mean follow-up of 96.9 months there was one local recurrence and eighteen patients were alive without disease in the pathologic fracture group. There was no survival difference between the pathologic fracture group with no metastases at presentation and the non-pathologic fracture group with no metastases (119.4 months vs 134.3 months, log rank 0.83, p=0.36).

To examine the outcome of osteosarcoma patients that present with a pathologic fracture as compared to those patients without a pathologic fracture.

There was no significant difference in the rate of amputation vs limb salvage surgery in osteosarcoma patients that presented with a pathologic fracture as compared to those without. There was no difference in the two groups’ disease-free and overall survival, for those patients that presented without metastatic disease.

Presentation with a pathologic fracture in osteosarcoma does not preclude limb salvage surgery and is not a prognostic indicator for decreased survival.

Retrospective review of all patients presenting to our institution with extremity osteosarcoma between 1989 and August 2002.

There were two hundred and forty-one patients with extremity osteosarcoma, thirty-six of whom presented with a pathologic fracture. In the pathologic fracture group, there were nineteen males and seventeen females. Twenty-five were treated with limb salvage surgery, ten required a primary amputation and one was unre-sectable. Three limb salvage surgery patients required a secondary amputation. Sevenpatients presented with metastatic disease. Twenty-eight of the thirty-six patients received (neo) adjuvant chemotherapy. At last follow-up, eighteen patients were alive no evidence of disease (51.4%), three were alive with disease, eleven were dead of disease and three were deceased from other causes. There was one local recurrence (2.8%). Mean overall survival was 119.4 months (0–147.1) for patients with a pathologic fracture and no metastasis at presentation and 134.3 months (0–172.5) for patients with no pathologic fracture and no metastasis (log rank 0.83, p=0.36).

Correspondence should be addressed to Cynthia Vezina, Communications Manager, COA, 4150-360 Ste. Catherine St. West, Westmount, QC H3Z 2Y5, Canada