Septic arthritis caused by Kingella kingae in children

Background: Approximately 50% of cases of bacterial arthritis occur in childhood. Currently Kingella kingae is considered as an emerging pathogen.

Methods: A ten month old male patient presented joint immobility in right knee. Arthrocentesis was performed.Kingella kingae was identified. He received treatment with ampiciline for 14 days.

Conclusions: This pathogen colonizes the posterior pharynx.Isolation in solid culture media may be difficult. Conclusions: It is essential to consider this pathogen when septic arthritis is suspected, and to routinely use blood culture bottles for processing samples of synovial fluid.