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  • Title: Pathologic fracture does not influence local recurrence and survival in high-grade extremity osteosarcoma with adequate surgical margins.
    Author: Xie L, Guo W, Li Y, Ji T, Sun X.
    Journal: J Surg Oncol; 2012 Dec; 106(7):820-5. PubMed ID: 22740310.
    Abstract:
    BACKGROUND AND OBJECTIVES: The purpose of this study was to estimate the risk factors having relationships with pathologic fracture of osteosarcoma of extremities and to evaluate the role of limb salvage surgery in this group of patients. METHODS: We retrospectively analyzed 28 consecutive cases of pathologic fracture of primary high-grade localized osteosarcoma of extremities between June 1, 2001 and June 30, 2009. All patients underwent limb salvage surgery and neo-adjuvant chemotherapy. They had a median age of 14 years (range, 6-30 years). The average follow-up time was 40.7 months (range, 9-108 months). Clinicopathological factors were analyzed in relation to pathologic fracture. Their recurrence and survival rates were compared to those in cohort of 171 osteosarcoma patients without pathologic fracture who underwent limb salvage surgery during the same period at the same institution. RESULTS: Less than 15 years, telangiectatic histological subtype, tumor located at the proximal humerus, and radiographical manifested as osteolytic features were risk factors in relation to pathologic fracture. The overall 3- and 5-year survival rates were 50.5% and 45.4%, respectively, in the fracture group, and were not significantly different from those in the control group (71.0% and 61.9%, respectively). Of all 28 fracture patients, 4 experienced local recurrences (14.2%) and 14 developed distant metastasis (50%), which were not significantly different from the rates in the control group (8.8% and 37.4%, respectively). CONCLUSION: Limb salvage surgery with adequate margins combined with neo-adjuvant chemotherapy for pathologic fracture of osteosarcoma did not seem to significantly increase the risk of local recurrence or distal metastasis.
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