The primary aim of treating infected knee joints after total knee arthroplasty is to eradicate the infection, but this is difficult to achieve. We reviewed the treatment of infections that occurred after total knee arthroplasty in patients with rheumatoid arthritis. The subjects were 14 patients with rheumatoid arthritis (3 men, 11 women; ages 38-81 years) who had 14 infected knee joints. The outcome was preservation of the implant in two cases, revision arthroplasty in six cases, arthrodesis in three cases, resection arthroplasty in one case, amputation in one case, and death in one case. If there is no loosening, preservation of the implant should be attempted. If preservation is impossible, revision arthroplasty is the next best option considering the effect on daily activities in patients with the disease affecting multiple joints.
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