Table 2.

Microbiology and route of infection in 22 patients with septic arthritis.

CharacteristicsPatients with Septic Arthritis, n = 22
Microbiology
  Streptococcus spp.15 (23)
  S. aureus5 (23)
  Anaerobes23 (14)
  Escherichia coli1 (5)
  Other pathogens32 (9)
  Culture negative8 (36)
Route of infection
  Hematogenous14 (64)
  Postinterventional6 (27)
  Posttraumatic1 (5)
  Contiguous from adjacent focus1 (5)
Pretreated with antimicrobials7 (32)
  • Data are n (%) of patients. Percentages are rounded and may not add up to 100.

  • 1 S. agalactiae (n = 2), S. dysgalactiae (n = 2), S. pneumoniae (n = 1).

  • 2 Clostridium clostridioforme (n = 1), Cutibacterium acnes (n = 1), Finegoldia magna (n = 1).

  • 3 Two patients had mixed infection, including Staphylococcus aureus and Corynebacterium striatum in 1 patient and Finegoldia magna and Staphylococcus epidermidis in another.