To evaluate the results of the treatment of postoperative periprosthetic fracture of the femur associated with loosening of the femoral prosthesis, which is treated by cementless proximal modular stem without bone graft.

Nine postoperative periprosthetic femoral fractures were classified by Duncan's method. Seven patients were in the B2 group and two were in the B3. All were managed with proximal modular fluted stem. Results were evaluated on the basis of bone union and Harris hip scores at 2.5 years follow-up.

All were successfully united at 7.5 weeks after revision. The mean Harris hip scores were 45.7 preoperatively and 92 at final follow-up. One patient who suffered from diabetes previously showed deep infection.

Postoperative periprosthetic fractures were successfully managed with proximal modular long fluted femoral stem without bone graft.