In performance of total hip replacement in the cases of acetabular deficiency, a few authors suggest cement inforcement with screws fixation or bone graft with resected femoral head for repair of it. In our cases another problem was loss of femoral head with acetabular deficiency, therefore resected femoral head could not be used. Our solution to this problem is to use the ilium, as a bone graft and to attach it to the acetabular wall to provide bone stock for the reconstruction. In six hips followed for over one year, all grafts appeared to be united and none showed evidence of resorption. All hips are functionally good and no case shows loosening.