Extended intralesional curettage has the benefits of good MSTS score, shorter operative time, shorter hospital stay, and lower complication rate without increasing local recurrence in central low-grade chondrosarcoma. For central low-grade chondrosarcoma, we suggest extended curettage to decrease soft tissue damage and surgical risk.
Background: Chondrosarcoma is the second most common primary sarcoma of the bone. Surgery remains the gold standard for treatment due to chemotherapy and radiotherapy resistance in chondrosarcoma. The main aim of our study was to analyze patients with primary chondrosarcoma of the bone who were treated in a single tumor center. Our study team identified the prognostic factors for overall survival, metastasis-free survival, and recurrence-free survival. Methods: From 1998 to 2012, 55 consecutive patients were treated surgically. All patients were followed for local recurrence or distant metastasis. Uni- and multivariate analyses were performed for overall, metastasis-free, and recurrence-free survival. Results: Local recurrence developed in 29 of the 55 patients (52.7%). Recurrence-free survival in the multivariate analysis showed a significant association with the surgical margin, and high-grade lesions were an independent factor for local recurrence. In total, 11 patients died of the disease in the study, and the 5- and 10-year survival rates were 84.4% and 78.1%, respectively. The tumor grade and local recurrence were significant factors in the univariate analysis but were insignificant in the Cox regression with time-dependent covariates (p = 0.327 and p = 0.82, respectively). The development of distant metastasis was a significant poor prognostic factor in both the uni- and multivariate analyses. Conclusion: Chondrosarcoma of the bone is a disease with surgery-dependent outcomes; but, however, patients often develop subsequent recurrence of the disease. The surgical margins were statistically associated with the risk of subsequent local recurrence but did not predict survival. The development of distant metastases was an independent prognostic factor for poor survival.
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