Brucella arthritis of the knee, 1 year after revision of anterior cruciate ligament reconstruction.

Brucellosis is a zoonotic infection with a broad spectrum of clinical manifestations. The authors report the first case in the literature of septic arthritis of the knee 1 year after revision of anterior cruciate ligament reconstruction. Brucella melitensis biotype 3 was found in both synovial fluid and blood cultures. The patient was treated initially with arthroscopic debridement. After the diagnosis was confirmed, a second arthroscopic lavage and metal work removal was applied leaving the graft in place. Antimicrobial chemotherapy was prescribed for 3 months. The infection was fully eradicated and the patient is still asymptomatic, 4 years after the treatment.