Background
The mainstay of treatment for bone metastases from renal cell carcinoma is surgery. We assessed if there was a difference in local recurrence, reoperation, and survival between patients who underwent metastasectomy, intralesional curettage, or stabilization only for renal cell carcinoma metastasis to the appendicular skeleton, and if there was a difference in these outcomes based on margin status.
Methods
This retrospective study included 183 patients; 48% underwent metastasectomy (n = 88, margins: 64 negative; 20 positive; 4 unclear), 30% intralesional curettage (n = 54), and 22% stabilization only (n = 41).
Results
The recurrence rate differed and was highest after stabilization only (39%), followed by intralesional curettage (22%), and metastasectomy (12%) (P = 0.003). However, we found no difference in reoperation rate (P = 0.847). Survival was better in patients who underwent metastasectomy (P = 0.020). The recurrence rate was lower in patients who had a negative margin (5%) as compared to those with a positive margin (26%) (P < 0.001). However, we found no difference in reoperation rate (P = 0.97). Negative margins showed better survival (P < 0.001).
Conclusions
Our findings emphasize the importance of obtaining negative margins in patients with a good life expectancy, as lower recurrence rate can be attained at a not significant additional risk for reoperation, with a potential impact on survival. J. Surg. Oncol. © 2016 Wiley Periodicals, Inc.
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