Septic knee arthritis with severe osteoarthritis (OA) presents challenging clinical situations because of unexpected and long time for treatment and less satisfactory clinical outcomes. Septic arthritis with damage to articular cartilage developed osteomyelitis (OM) frequently. Although arthroscopic debridement was the common treatment of septic arthritis, there was some limitation on the management of infected bone structures and then open arthrotomy should be reserved. In the patients of OM located only periarticular areas, the author used the PROSTALAC system for infected total knee arthroplasty (TKA) and achieved good results. In periarticular OM with septic knee arthritis in patients with severe OA, we report the rate of control of infection using the PROSTALAC articulating spacer and to assess the clinical outcome after staged TKA.Introduction
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