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Erschienen in: World Journal of Surgery 7/2020

13.03.2020 | Original Scientific Report

Predictors and Survival of Patients with Osteosarcoma After Limb Salvage versus Amputation: A Population-Based Analysis with Propensity Score Matching

verfasst von: Lin Qi, Xiaolei Ren, Zhongyue Liu, Shuangqing Li, Wenchao Zhang, Ruiqi Chen, Congzhou Chen, Chao Tu, Zhihong Li

Erschienen in: World Journal of Surgery | Ausgabe 7/2020

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Abstract

Background

Conflicting findings have been reported concerning the survival of patients treated with limb salvage and amputation for osteosarcoma. This study aimed to identify predictors associated with surgery types and survival difference.

Methods

Patients with osteosarcoma were selected from the Surveillance Epidemiology and End Results database (1975–2016). Multivariable logistic regression analysis was conducted, and a nomogram was further established. Propensity score matching (PSM)-adjusted Kaplan–Meier curves, log-rank tests, Cox proportional hazards regression analysis were performed to compare overall survival (OS) and cancer-specific survival (CSS).

Results

Among 3363 patients with osteosarcoma, 2447 and 916 underwent limb salvage and amputation. Predictors associated with amputation in the nomogram included age, gender, primary tumor site, tumor grade, tumor stage, tumor size and radiotherapy. Totally 900 pairs of patients treated with limb salvage and amputation were matched after PSM. Limb salvage was significantly associated with improved OS (HR, 0.773; 95% CI, 0.670–0.892; p < 0.001) and CSS (HR, 0.795; 95% CI, 0.681–0.927; p = 0.003) in PSM-adjusted cohort after adjusting for related variables. The significant treatment effect of limb salvage was consistent within most subgroups. Among patients treated with surgery for osteosarcoma, age between 41 and 60, age ≥ 61, pelvis as the primary site, high tumor grade (III/IV), regional and distant tumor stage, tumor size ≥ 92 mm and radiotherapy were independent prognostic factors in PSM cohort.

Conclusions

Limb salvage exhibits significant benefit on OS and CSS compared with amputation for osteosarcoma. Predicators and survival differences should be given full consideration for the treatment of osteosarcoma.
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Metadaten
Titel
Predictors and Survival of Patients with Osteosarcoma After Limb Salvage versus Amputation: A Population-Based Analysis with Propensity Score Matching
verfasst von
Lin Qi
Xiaolei Ren
Zhongyue Liu
Shuangqing Li
Wenchao Zhang
Ruiqi Chen
Congzhou Chen
Chao Tu
Zhihong Li
Publikationsdatum
13.03.2020
Verlag
Springer International Publishing
Erschienen in
World Journal of Surgery / Ausgabe 7/2020
Print ISSN: 0364-2313
Elektronische ISSN: 1432-2323
DOI
https://doi.org/10.1007/s00268-020-05471-9

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