A M Davis1, R S Bell, P J Goodwin. 1. University of Musculoskeletal Oncology Unit, Mount Sinai Hospital, Toronto, Canada.
Abstract
PURPOSE: The purpose of this critical appraisal was to determine the prognostic factors that influence survival in patients with nonmetastatic, high-grade osteosarcoma of the extremities. DESIGN: A computerized literature search of reports published from January 1973 to March 1992 was conducted to determine those eligible for inclusion in the review. Reports were reviewed blindly by two of the authors; inclusion and scoring were determined according to preestablished criteria. RESULTS: Eight reports were included in the appraisal. The prognostic variables evaluated were age, sex, anatomic tumor location, tumor size, and tumor necrosis. Tumor size and necrosis following preoperative chemotherapy were significant prognostic variables in relation to survival in univariate analysis. However, only tumor necrosis maintained its significance in multivariate modeling. CONCLUSION: The most important prognostic variable for patients with osteosarcoma of the extremity was tumor necrosis evident following preoperative chemotherapy. There is no consensus as to any prognostic variable that might be used to stratify patients before the onset of therapy.
PURPOSE: The purpose of this critical appraisal was to determine the prognostic factors that influence survival in patients with nonmetastatic, high-grade osteosarcoma of the extremities. DESIGN: A computerized literature search of reports published from January 1973 to March 1992 was conducted to determine those eligible for inclusion in the review. Reports were reviewed blindly by two of the authors; inclusion and scoring were determined according to preestablished criteria. RESULTS: Eight reports were included in the appraisal. The prognostic variables evaluated were age, sex, anatomic tumor location, tumor size, and tumor necrosis. Tumor size and necrosis following preoperative chemotherapy were significant prognostic variables in relation to survival in univariate analysis. However, only tumor necrosis maintained its significance in multivariate modeling. CONCLUSION: The most important prognostic variable for patients with osteosarcoma of the extremity was tumor necrosis evident following preoperative chemotherapy. There is no consensus as to any prognostic variable that might be used to stratify patients before the onset of therapy.
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