Length of the Femoral Stem in Arthroplasty Done for Patients With Proximal Femoral Metastatic Lesion

using lateral approach to the hip we will compare the effect of femoral stem length on the oncological and functional outcomes in patients with proximal femoral metastasis.hip arthroplasty is a surgical procedure that involves changing the head of the femur (the ball) with or without replacing the articular surface of the acetabulum (the socket ).and replacing it with metal head based on a stem covered with cement to fix it to the bone of the femur.