Atypical sequelae of knee arthroscopy and reactive arthritis.

Aim. To evaluate the reasons for atypical sequelae of knee arthroscopy.<br /> Material. A group of 11 patients (6 women and 5 men), age 17-56 (mean 33.4), referred for rheumatological consulation because of persistent exudates and/or pain in the operated joint. Infectious arthritis, rheumatoid arthritis, psoriatic arthritis and gout were excluded. Immunological diagnostics were performed on all patients, testing for the presence of anti-Chlamydia trachomatis, anti-Yersinia enterocolitica, anti-Salmonella enteritidis and typhimurium antibodies.<br /> Results. In 10/11 patients various antibodies were detected (most often anti-Chlamydia trachomatis antibodies). Other reasons for atypical sequelae of knee arthroscopy included pigmentous villo-nodular synovitis and chondrocalcinosis. The Discussion presents those clinical symptoms and signs appearing in orthopedic examinations that serve as indications for rheumatological consultation.<br /> Conclusion. The most common reason for atypical sequelae of knee arthroscopy is reactive arthritis caused by Chlamydia trachomatis and G(-) enteric bacteria infections.