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Updated: Dec 17, 2025
A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing Neoadjuvant Therapies
Published on: July 28, 2020
Oncologic outcomes of pre- versus post-operative radiation in Resectable soft tissue sarcoma: a systematic review and
Xinmiao Yang1, Lihua Zhang1, Xiaojing Yang1
1Department of Radiation Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Shanghai, 200233, China.
Background:
Postoperative radiation therapy for soft tissue sarcomas demonstrated good local recurrence-free survival rates and survival outcomes. However, the results remained controversial. This study aimed to evaluate the role of preoperative and postoperative radiation therapy for the treatment of resectable soft tissue sarcomas.
Methods:
The electronic database PubMed, MEDLINE, Cochrane Library, and EMBASE were performed from inception till 30 November, 2019. The effect of preoperative versus postoperative radiation therapy on resectable soft tissue sarcomas was compared and then assessed.
Results:
A total of 15 studies with 12,813 patients were included, and most of these had acceptable quality scores. Of these, 10 studies reported data on local recurrence. The pooled results indicated no significant differences between preoperative radiotherapy and postoperative radiotherapy groups for local recurrence, with a risk ratio (RR) and 95% confidence interval (CI) of 0.84 (95%CI = 0.58-1.21). No difference was observed in the overall survival and distant metastasis between the two groups. According to the pooled results, preoperative radiotherapy group showed a significant risk for complications (RR = 2.11, 95%CI = 1.36-3.27).
Conclusions:
The postoperative radiation therapy does not increase the local recurrence, overall survival, and distant metastasis, but might result in lowering complications.
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