Strategy to control methicillin-resistant Staphylococcus aureus post-operative infection in orthopaedic surgery

J C De Lucas-Villarrubia1, M Lopez-Franco, J J Granizo

  • 1Department of Orthopaedic Surgery, Fundacion Jimenez Diaz, Universidad Autonoma de Madrid, Avda Reyes Catolicos 2, 28040, Madrid, Spain.

Insights

A new prophylaxis regimen significantly reduced methicillin-resistant Staphylococcus aureus (MRSA) infections following joint replacement surgery. This intervention proved effective in preventing post-arthroplasty MRSA infections during a 12-month follow-up.

Area of Science:

  • Orthopaedic Surgery
  • Infectious Disease Control
  • Hospital Epidemiology

Background:

  • High incidence of arthroplasty infections (9.75%) in 2000.
  • Methicillin-resistant Staphylococcus aureus (MRSA) accounted for 33% of these infections.
  • Urgent need for effective infection control strategies.

Purpose of the Study:

  • To implement and evaluate a revised prophylaxis regimen to reduce MRSA infections post-arthroplasty.
  • To assess the impact of the new protocol on surgical site infections.
  • To determine the sustained efficacy of the intervention.

Main Methods:

  • Modified infection prevention measures.
  • Active prophylaxis targeting nasal MRSA reservoirs.
  • Enhanced healthcare personnel screening and control.
  • Strict adherence to standard and contact precautions for MRSA patients.
  • Use of teicoplanin prophylaxis during a 6-month trial period.

Main Results:

  • Significant decrease in MRSA infections specifically within orthopaedic wound sites.
  • MRSA infection rates remained stable in other hospital areas.
  • Only one MRSA infection occurred during the 6-month trial.
  • Sustained reduction in infections observed in the subsequent 6 months.
  • No new MRSA infections detected in patients followed for 12 months post-arthroplasty.

Conclusions:

  • The comprehensive prophylaxis strategy effectively reduced MRSA surgical site infections after arthroplasty.
  • The intervention demonstrated a lasting positive impact on patient outcomes.
  • This approach offers a viable solution for controlling MRSA in orthopaedic settings.

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