[A case of femoral osteomyelitis caused by Lactococcus]

The authors report on a case of osteomyelitis of the femur, where the causative agent was Lactococcus. These bacteria are mainly pathogenic in endocardial implants and extremely rare in osteomyelitis. The osteomyelitis was complicated with endocarditis, cerebral and pulmonary abscess. In the reported case the occurrence of osteomyelitis was similar to bone tumor formation, so there was a challenging diagnostic approach. Based upon this case, the diagnostic algorithm, the treatment strategy and the outcome of the treatment are reported. Authors also give a short overview of the literature published on this rare microorganism in bone and joint diseases.