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

Updated: Sep 19, 2017
  • 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, [10, 11] and group B streptococci, [12] account for 20% of cases. Aerobic gram-negative rods are involved in 20-25% of cases. Most of these infections occur in people who are very young, who are very old, [13] who are diabetic, who are immunosuppressed, and who abuse intravenous drugs. [2]

Infection of the sternoclavicular and sacroiliac joints with Pseudomonas aeruginosa or Serratia species occurs almost exclusively in persons who abuse intravenous drugs. Persons with leukemia are predisposed to Aeromonas infections. [14]


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