抄録
Earlly treatment is reguired for pyogenic arthritis of the knee. We performed arthroscopic debridemnent on 19 knees of 18 patients. The mean age of the patients was 71.2 years (range: 11 to 100 years). These patients were operated on one to 11 days (mean: 2.5 days) after onset. Twelve achieved good results, and six fair results according to the Ballard's evaluation method. The infection was cured in all patients, with no recurrence.