Authors experienced thirty-eight hips of thirty-eight patients who had had the total hip arthroplasty complicated by an ipsilateral femur fracture in the intraoperative or postoperative period. We analyzed the influence of the fracture on the total hip arthroplasty and a bony union. The incidence of the femoral shaft fracture was 2.4%, and it was 4% in revision total hip arthroplasty. There were twenty-one hips in an intraoperative fracture and during the follow-up period seventeen were occured. Type I fracture was twenty-two hips, and Type II was fourteen, and Type III was two. During operation six cases (27%) of the femoral fracture was not noticed. In Type I fracture, regardless of treatment method, unsatisfactory results were obtained, and in Type II fracture, satisfactory results were obtained in using long stem prosthesis with internal fixation. More satisfactory results in cementless total hip arthroplasty were obtained than in cemented total hip arthroplasty. Bony union was obtained in all cases. Satisfactory results were twenty-two fractures <50% >; ten <45% ) in Type I and ten <71%> in Type II and two <100 % > in Type III.