抄録
Infection is one of the most serious postsurgical complications of total knee arthroplasty (TKA). We reviewed the results of treatment for infected TKAs in our institution. We performed 1103 TKAs between 1989 and 2005. Nine of them had chronic infection after TKA. The mean duration of follow up was 4.5 years. The infection rate was 0.82%. The patients with chronic infection were 2 men and 7 women, 2 of whom had osteoarthritis and 7 had rheumatoid arthritis. The mean age of the 9 patients was 57.8 years. Three of the nine successfully retained their prosthesis after intravenous antibiotic treatment, debridement, and irrigation. However, 6 cases required arthrodesis. Major factors associated with treatment failures were long duration between occurrence of infection and start of treatment. Rheumatoid arthritis patients tended to have arthrodesis instead of reimplantation, because of comorbidities and soft tissue losses.
