Abstract
Pelvic bone metastases from renal cell carcinoma (RCC) are challenging due to their destructive pattern, poor response to radiotherapy and hypervascularity. The purpose of our study was to review a series of patients undergoing surgical treatment with the aim to investigate: 1) survival; 2) local disease control; and 3) complications. A series of 16 patients was reviewed. A curettage procedure was performed on 12 patients. In eight the lesion involved the acetabulum; a cemented hip arthroplasty with cage was performed in seven; a flail hip in one. Four patients received a resection; in two cases with acetabular involvement, reconstruction was performed with a custom-made prosthesis and with an allograft and prosthesis. Disease-specific survival accounted for 70% at 3 years and 41% at 5 years. Only one local tumor progression after curettage occurred. Revision surgery (flail hip) was necessary for deep infection of the custom-made prosthesis. A prolonged survival in patients affected by bone metastatic disease from RCC can justify also major surgical procedures. Due to a low local progression rate after intralesional procedures, curettage, cement and a total hip arthroplasty with cage, when feasible, should be considered as an alternative to more demanding surgeries like resections and reconstructions. Level 4.
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