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Common infecting organisms after major joint replacement

Authoring team

  • coagulase-negative staphylococci (Staphylococcus epidermidis): 25-45%
  • Staphylococcal aureus (note 1): 19-25%
  • polymicrobial: 3-16%
  • aerobic Gram-negative bacilli: 7-13%
  • Streptococci: 2-11%
  • anaerobes: 6-9%
  • Enterococci: 3-5%
  • Diptheroids: 2-5%

Note 1: the proportion of MRSA varies between hospitals and over time.

In the period 1997-1999 over 50% of all superficial and deep wound infections detected during the hospital admission, following hip prosthesis, were due to S. aureus and about 28% of infections were due to MRSA. Following total knee replacement, 8-10% of infections were due to MRSA.

A more recent study revealed that coagulase-negative staphylococci and Staphylococcus aureus were the most common organisms causing joint related infections (5).

Reference:


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