Septic Arthritis Due to Streptococcus pneumoniae in Nottingham, United Kingdom, 1985-1998

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Abstract
Pneumonia and meningitis are the 2 most frequent manifestations of Streptococcus neumoniae infection. Pneumococcal septic arthritis is considered to be relatively uncommon. Between 1985 and 1998, 32 (8.2%) of 389 cases of septic arthritis seen in the 2 hospitals in Nottingham, United Kingdom, were due to S. pneumoniae. Six of 7 children with pneumococcal septic arthritis were aged 60 years, 11 (44%) had concomitant pneumococcal infection elsewhere, and 23 (92%) had articular or nonarticular diseases and/or other risk factors. In the elderly, a lack of febrile response was striking. S. pneumoniae was isolated from blood and joint cultures in >70% of cases, and gram-positive diplococci were seen in the joint fluids of 90% of patients. The mean duration of antimicrobial therapy for adults was twice as long as that for children. Eight (32%) of the adults died.

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