Decolonization of drug-resistant organisms before total joint arthroplasty

Area of Science:

• Orthopedic surgery
• Infectious disease
• Microbiology

Background:

• Periprosthetic joint infection (PJI) is the primary reason for total knee arthroplasty (TKA) failure.
• Staphylococcus aureus, often from endogenous flora, is the typical causative agent.
• Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant threat in orthopedic procedures.

Purpose of the Study:

• To evaluate the effectiveness of preoperative screening and decolonization programs for MRSA in reducing PJI after TKA.
• To investigate the role of these programs in the context of total joint arthroplasty outcomes.
• To identify the need for further research in this area.

Main Methods:

• Review of existing literature on preoperative screening tests for MRSA.
• Analysis of studies investigating the impact of testing and decolonization on surgical site infections.
• Assessment of the power and limitations of current research regarding TKA.

Main Results:

• Testing and decolonization programs have shown general effectiveness in decreasing surgical site infections.
• Recent studies suggest a trend towards fewer MRSA infections after TKA with these programs.
• However, most existing studies are underpowered to provide definitive conclusions.

Conclusions:

• The role and efficacy of MRSA testing and decolonization programs in total joint arthroplasty require further investigation.
• Larger, randomized, controlled trials are essential to establish definitive evidence.
• Optimizing patient flora management is crucial for improving TKA outcomes and reducing infection rates.