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Arch Argent Pediatr. 2012 Dec;110(6):e126-8. doi: 10.1590/S0325-00752012000600015.

[Kingella kingae pediatric septic arthritis].

[Article in Spanish]

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Servicio de microbiología, Hospital Universitario Miguel Servet, Zaragoza, Spain.


Kingella kingae is a bacterium that colonizes the upper respiratory tract. Despite its low pathogenicity in this location, previous respiratory pathological processes may favor its systemic spread causing bone and joint infections, mainly in children under five years. It can be considered an emerging pathogen in osteoarticular infection in pediatric patients. We report the case of a two-year-old girl with hips pain and limitation of both abduction and extension, and fever. Radiography and ultrasonography were compatible with transitory synovitis; showed scintigraphy inflammatory pathology of the right hip. Articular puncture was performed. The material showed altered biochemical parameters. Microbiological culture yielded isolation of a strain of K. kingae susceptible to beta-lactam antibiotics, azithromycin and trimethoprim-sulfamethoxazole. Blood cultures were negative. The patient was treated empirically with cloxacillin and cefotaxime iv. and continued with amoxicillin-clavulanate orally with osteoarticular improvement.

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