Abstract
This report is a case presentation of revision arthroplasty by KLS tumor hip prosthesis for comminuted fracture of the femur after infection of femoral head prosthetic replacement. An 81-year-old woman became infected after femoral head prosthetic replacement in 2004. At the removal of the hip prosthesis and insertion of a cement spacer, periprosthetic comminuted fracture of the femur occurred. Generally, such a case with bone loss is treated by plate and allograft, usually bone plate or impaction bone graft. Because it was difficult to get allograft in our region, we performed revision arthroplasty by KLS tumor hip prosthesis with bone cement impregnated with antibiotics. We used a polyethylene acetabular cup with bone cement instead of a semi-constrained socket, because we expected loosening of a semi-constrained socket would occur in the weak bone. The prosthesis dislocated twice postoperatively. After application of a hip orthosis, no dislocation occurred. At ten months after the revision arthroplasty, the patient was able to walk with a walker, and felt no pain. A radiograph showed no evidence of prosthesis loosening and there was no recurrence of infection. Revision arthroplasty by KLS, one of the treatments for periprosthetic femoral fracture with bone loss, was successful in this patient.
