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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_II | Pages 111 - 111
1 Feb 2012
Aldlyami E Vivek A Grimer R Carter S Abudu A Tillman R
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All patients referred to our unit with previously untreated metastatic renal cancer were included in this review. We investigated likely prognostic factors including age, sex, site, synchronous or metachronous metastasis, stage of the disease and the type of treatment received.

From 1976 until 2004, a total of 198 patients were treated by our unit for renal metastases. 15 patients were excluded because they were referred after failure of previous treatment or only had advice. 96 patients were already known to have renal metastasis with their diagnosis having been made between 0.2 and 17 years from the diagnosis of primary cancer (mean 4 years). 33 patients presented to us with a pathological fracture and were found to have renal cancer. A total of 54 patients had multiple metastases and 129 had a solitary metastasis. The cumulative survival from the time of diagnosis of the bone metastasis is 70 percent at 1 year, 40% at 3 years and 18% at 5 years. In patients with a solitary metastasis, the overall survival was 74% at 1 year and 45% at 3 years, whereas in patients with multiple metastases it was 55% at 1 year and 22% at 3 years. (p=0.02) In patients with a solitary metastasis treated by excision of the metastasis, the survival at 1 year was 86% as compared to 38% for those that were treated with just a local procedure. Cox multivariate analysis shows that survival was better in those with solitary metachronus metastasis who underwent a radical procedure.

Conclusion

We recommend a radical procedure for patients who present with a solitary renal metastasis, particularly those with a disease-free interval of more than one year.