What is the prevalence of septic arthritis caused by streptococcal species?

Updated: Sep 03, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Streptococcal species, such as Streptococcus viridans, S pneumoniae, [12, 13] and group B streptococci [14] account for 20% of cases. Aerobic gram-negative rods are involved in 20-25% of cases. Most of these infections occur among very young individuals, very old individuals, [15] people with diabetes, immunosuppressed individuals, and people who abuse intravenous drugs. [2]

Infection of the cartilaginous joints (sternoclavicular, sacroiliac, and pubic joints) with Pseudomonas aeruginosa or Serratia species occurs almost exclusively among people who abuse intravenous drugs. Individuals with leukemia are susceptible to Aeromonas infections. [16]


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