Abstract
Background
This update of a randomized, prospective study presents the effect of external beam radiation therapy (EBRT) on long-term overall survival, local control, and limb function following limb-sparing surgery (LSS) for the treatment extremity soft tissue sarcoma (STS).
Methods
Following LSS, patients with extremity STS were randomized to receive EBRT or surgery alone. All patients with high-grade STS received adjuvant chemotherapy. Long-term follow-up was obtained through telephone interviews using a questionnaire based on validated methods. Overall survival (OS) was determined by Kaplan–Meier method.
Results
A total of 141 patients with extremity STS were randomized to receive adjuvant EBRT (n = 70) or LSS alone (n = 71). Median follow-up was 17.9 years. The 10- and 20-year survival was 77 % (95 % CI 66–85 %) and 64 % (95 % CI 52–75 %) for patients receiving LSS alone and 82 % (95 % CI 72–90 %) and 71 % (95 % CI 59–81 %) for patients receiving EBRT (p = 0.22). Of the 54 patients who completed telephone interviews, the incidence of local recurrence during the follow-up period was 4 % (1 of 24) in the LSS alone cohort compared with 0 % (0 of 30) in those who received EBRT (p = 0.44). Patients treated with EBRT tended to have more wound complications (17 vs. 12.5 %, p = 0.72), clinically significant edema (25 vs. 12 %, p = 0.31), and functional limb deficits (15 vs. 12 %, p = 0.84).
Conclusions
Adjuvant EBRT following surgery for STS of the extremity provides excellent local control with acceptable treatment-related morbidity and no statistically significant improvement in overall survival.
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Beane, J.D., Yang, J.C., White, D. et al. Efficacy of Adjuvant Radiation Therapy in the Treatment of Soft Tissue Sarcoma of the Extremity: 20-year Follow-Up of a Randomized Prospective Trial. Ann Surg Oncol 21, 2484–2489 (2014). https://doi.org/10.1245/s10434-014-3732-4
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DOI: https://doi.org/10.1245/s10434-014-3732-4