How many orthopedic SSIs are caused by Staphylococcus aureus?
• The most common cause of serious SSIs (those involving more than just the skin) after orthopedic procedures is S. aureus. About 50% of all serious SSIs after orthopedic surgery are caused by this organism. • About 50% of these Staphylococcus aureus SSIs are caused by MRSA, a form of this bacteria that is resistant to many antibiotics. • For the most current statistics on antimicrobial-resistant pathogens associated with SSIs, go to the National Healthcare Safety Network’s annual update of antimicrobial-resistant pathogens, which can be found at http://www.journals.uchicago.edu/doi/pdf/10.1086/591861 PDF (128 KB / 16 pages (link opens in new browser window)) .