Abstract
Revision of infected total hip arthroplasty has had variable success and can be performed in single or double-stage procedures using antibiotics to treat the infections. From April to July 2006 we have treated a total of 5 patients suffering from infected total hip arthroplasty using the Prostalac hip system at Anderson Orthopaedic Research Institute. Several advantages are associated with the Prostalac hip system like, effective treatment of sepsis, reduction of patient morbidity and rehabilitation from prolonged immobility. Furthermore, it permits a less complicated approach to placement of the final arthroplasty components. The Prostalac hip is comprised of a cobalt chrome alloy core femoral component, a cobalt chrome alloy modular femoral head, a one-piece polyethylene acetabular component, a PMMA stem centering device and antibiotic-loaded bone cement. It has been designed to remain in situ for approximately three months after which a second surgery is performed for implantation of a permanent THA prosthesis. Considering the design characteristics of this device stress associated with full weight bearing should be avoided during the three month implantation period. We had the good results for all treated cases; unfortunately this system has not been approved in Japan.
