J Cancer 2019; 10(11):2457-2463. doi:10.7150/jca.30388

Research Paper

Predictors of the survival of patients with chondrosarcoma of bone and metastatic disease at diagnosis

Zhan Wang, Genlian Chen, Xiaowei Chen, Xin Huang, Meng Liu, Weibo Pan, Xiaobo Yan, Nong Lin, Zhaoming Ye

Department of Orthopaedics, Centre for Orthopaedic Research, Orthopedics Research Institute of Zhejiang University, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, Zhejiang 310000, P.R. China

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Citation:
Wang Z, Chen G, Chen X, Huang X, Liu M, Pan W, Yan X, Lin N, Ye Z. Predictors of the survival of patients with chondrosarcoma of bone and metastatic disease at diagnosis. J Cancer 2019; 10(11):2457-2463. doi:10.7150/jca.30388. Available from http://www.jcancer.org/v10p2457.htm

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Abstract

Purpose: Chondrosarcoma with metastatic disease has a very poor prognosis. However, the prognosis and potential prognostic factors of patients with primary chondrosarcoma of bone and metastasis at presentation have not been documented because of its rarity. Therefore, we examined the prognosis of this special cohort and identify possible prognostic factors.

Methods: The Surveillance, Epidemiology, and End Results (SEER) program database was used to identify patients with primary chondrosarcoma of bone and metastatic disease at diagnosis from 2000 to 2013. The prognostic analysis was performed using the Kaplan-Meier method and a Cox proportional hazards regression model.

Results: The SEER database contained 264 cases. The overall survival (OS) and cancer-survival specific (CSS) rates of the entire group at 5 years were 28.4% and 31.2%, respectively. The median OS and CSS were 14.0 ± 2.5 and 17.0 ± 2.6 months, respectively. Multivariate analysis revealed that low tumor grade, surgical treatment, tumor size < 10 cm, and first primary tumor were associated with improved OS. Tumor grade, tumor size, and surgery were independent predictors of CSS. Radiation therapy had no effect on either OS or CSS.

Conclusion: Among patients with primary chondrosarcoma of bone and metastasis at presentation, low tumor grade, surgical treatment, tumor size < 10 cm, and first primary tumor predict prolonged survival.

Keywords: chondrosarcoma, metastasis at presentation, survival, prognostic factor