Septic Arthritis – Facts

Most commonly affected joints in descending order include :

  • knee > hip > elbow > ankle >sternoclavicular joint

Most common pathogens include :

  • Staphylococcus species
    • Staphylococcus aureus (most common, >50% cases)
    • MRSA
    • Staphylococcus epidermis
  • Neisseria gonorrhea
    • Most common organism in otherwise healthy sexually active adolescents and young adults
    • Knee joint most commonly involved
  • Streptococcus
  • Salmonella
    • seen in patients with sickle cell disease
  • Pseudomonas aeruginosa
    • seen in patient with history of IV drug abuse
  • Pasteurella multocida
    • seen in patients after dog or cat bite
  • Eikenella corrodens
    • seen in patients after human bite
  • Organism found in immunocompromised host
    • can include fungal, and candida common pathogens

One comment

  1. To add, 1. adult with systemic lupus erythematous are more prone to develop infection with salmonella. 2. in hemophilic patients most common org is s.aureus..

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