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Updated: Oct 28, 2025
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A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing Neoadjuvant Therapies
Published on: July 28, 2020
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Preoperative versus Post-operative Radiotherapy for Extremity Soft tissue Sarcoma: a Systematic Review and
Garikai Kungwengwe1, Rachel Clancy2, Johanne Vass1
1The Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, UK.
Summary
Post-operative radiotherapy significantly improves overall survival in extremity soft tissue sarcoma (ESTS) patients. This approach also reduces wound complications compared to preoperative radiotherapy, suggesting it is the preferred timing for treatment.
Area of Science:
- Oncology
- Radiation Oncology
- Surgical Oncology
Background:
- Perioperative radiotherapy is crucial for managing resectable extremity soft tissue sarcoma (ESTS).
- While effective for local control, its impact on long-term survival remains debated.
- This study investigates the influence of radiotherapy timing on survival outcomes in ESTS.
Purpose of the Study:
- To determine if the timing of perioperative radiotherapy impacts long-term survival in adult ESTS patients.
- To compare survival outcomes between pre-operative and post-operative radiotherapy administration.
- To assess the association between radiotherapy timing and wound complications.
Main Methods:
- Systematic literature search across major databases (MEDLINE, EMBASE, Web of Science, Cochrane).
- Pooled analysis using hazard ratios (HR) and odds ratios (OR) with random-effects modeling.
- Sensitivity analyses performed to address heterogeneity across studies.
Main Results:
- Post-operative radiotherapy demonstrated a significant advantage in overall survival (HR 1.15, p=0.05).
- Subgroup analysis revealed significant survival benefits (overall, disease-free, disease-specific) with post-operative radiotherapy (OR 1.19, p=0.01 for all).
- Preoperative radiotherapy was associated with a significant increase in wound complications (OR 2.74, p<0.00001).
Conclusions:
- Post-operative radiotherapy offers a significant long-term survival advantage for ESTS patients.
- This timing also appears to reduce wound complications compared to preoperative radiotherapy.
- Further randomized controlled trials are needed to establish optimal perioperative radiotherapy protocols for ESTS.
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