Effect of reresection in extremity soft tissue sarcoma

Area of Science:

• Oncology
• Surgical Oncology
• Sarcoma Research

Background:

• Soft tissue sarcomas are rare, often initially misdiagnosed as benign, leading to incomplete excisions.
• This necessitates further surgical intervention due to inadequate margins in initial resections.

Purpose of the Study:

• To evaluate the impact of reresection on survival in patients with inadequately resected primary extremity soft tissue sarcoma.
• To correlate reresection with local recurrence-free, metastasis-free, and disease-free survival rates.

Main Methods:

• Retrospective analysis of 1,092 patients with primary extremity soft tissue sarcoma treated between 1982 and 1999.
• Comparison of outcomes between patients undergoing one definitive resection versus those requiring reresection after prior excision.
• Patients received adjuvant therapy (radiation/chemotherapy) per standard protocols.

Main Results:

• Reresection (two operations) was associated with an 88% 5-year disease-free survival rate, compared to 70% for definitive resection (one operation).
• Multivariate analysis confirmed reresection as a significant predictor of improved disease-free survival, independent of age, grade, size, and margins.
• A trend toward improved outcomes with reresection was observed across all AJCC stages, most notably in Stage III disease.

Conclusions:

• Reresection in extremity soft tissue sarcoma is associated with superior survival compared to a single operation.
• The benefits of reresection persist even after adjusting for prognostic factors, challenging explanations solely based on referral bias.
• Reresection should be considered a valuable therapeutic option when indicated and feasible for primary extremity soft tissue sarcoma.