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bacterial arthritis

  • Epidemiology and risk factors 󰒖 (Infect Dis Clin North Am 2017;31:203)
  • Clinical manifestations 󰒖 (JAMA 2007;297:1478; Lancet 2010;375:846)
  • Additional diagnostic studies 󰒖 (JAMA 2007;297:1478)
  • Treatment for native joints (IDCNA 2017;31:203)
    • Prompt empiric antibiotics guided by Gram stain after surgical drainage.
    • If Gram stain ⊖, empiric Rx w/ vancomycin;
      • add anti-pseudomonal agent if IVDU or immunocompromised.
  • Treatment for native joints 󰒖 (IDCNA 2017;31:203)
    • IV antibiotics × ≥2 wk followed by oral antibiotics; varies by clinical course & microbiology
    • Joint must be drained, often serially w/ arthroscopy (larger joints, initial Rx) or arthrocentesis. Serial synovial fluid analyses should demonstrate ↓ in WBC and sterility.
    • 10-15% mortality (up to 50% w/ polyarticular); depends on virulence, time to Rx, host
  • Prosthetic joint infections