抄録
Total knee arthroplasties were performed in 1348 rheumatoid arthritis patients at Dohgo Spa Hospital between April 1984 and December 2005. Of those, 13 knees (0.96%), of 12 patients (3 knees of 3 men and 10 knees of 9 women) were treated for an infection that had developed after total knee arthroplasty. We identified 3 acute, 4 delay and 6 late infections on the basis of the clinical presentation described by Fizgerarald et al. As for clinical symptons, all patients complained about persistent pain, but only 6 cases (46%) had developed fever.
It was valuable to examine the knee infection they elevated higher C-reactive protein than elavating white blood cell count. All patients were treated with a suction-irrigation system and antibiotics. Eight knees (62%) were receptive to prosthesis by treatment with the suction-irrigation system only. The organism involved included eight cases of Staphylococcus aureus, two cases of Methicillin-Resistannt Staphylococcus aureus (MRSA) and one case of Pseudomonas aeruginosa. Treatment in the case of the two infected knees caused by MRSA failed and the prosthesis was removed. Two knees with one-stage revision and one knee with two-stage revision had no signs of reinfection.
