[Subtrochanteric renal cell carcinoma metastasis: implantation of a femoral head preserving prosthesis].

A 60-year-old man presented to our institution with a singular subtrochanteric renal cell carcinoma metastasis of the right femur. Tumor resection and implantation of a cemented femoral head preserving prosthesis was considered as the best treatment option to obtain a good hip joint function. After successful surgery (R0 resection) the patient was immediately mobilized with full weight-bearing. One year postoperatively the patient presented with good joint function and absolute mobility. X-ray examinations revealed a good position of the implanted prosthesis without signs of tumor recurrence or femoral head necrosis. Implantation of a femoral head preserving prosthesis is a good option for the treatment of subtrochanteric/diaphyseal tumors of the femur.