Journal
MEDICINA-BUENOS AIRES
Volume 75, Issue 5, Pages 303-306Publisher
MEDICINA (BUENOS AIRES)
Keywords
parosteal osteosarcoma; allograft reconstruction; overall survival; local recurrence
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The objective of the study was to analyze a group of patients with low grade parosteal osteosarcoma treated with limb salvage surgery and reconstructed with bone allograft. A retrospective review from our oncologic data base between 1980 and 2010 was done and all patients with diagnosis of low grade parosteal osteosarcoma, treated with limb salvage surgery and reconstructed with allograft were included. Twenty-two patients were included for the analysis. The mean age was 32 +/- 11 years (10-59) y the mean follow-up 93 +/- 69 months (8-237). Ten year overall survival of the series was 91% (95%CI: 79-100). Four patients developed local recurrence, 2 of them histological classified after the resection dedifferentiated parosteal osteosarcoma. Two patients developed distant recurrence, being the lung the only site of metastasis. Ten year limb salvage reconstruction survival was 65% (95%CI: 44-86). Long term survival rate in low grade parosteal osteosarcoma is over 90%. Surgical resection wide margin should be the elective treatment and biological limb salvage reconstruction is a good alternative.
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