Management of infected prostheses

Area of Science:

• Orthopedic Surgery
• Infectious Disease Management
• Biomaterials Science

Background:

• This study retrospectively analyzed 825 one-stage reimplantations for infected total hip replacements using antibiotic-loaded acrylic cement.
• Staphylococcus aureus was the most frequent pathogen identified in infected prostheses.

Discussion:

• The failure rates for prostheses infected with Staphylococcus aureus, other Staphylococcus species, and anaerobic Corynebacteria were statistically similar.
• Pseudomonas infection emerged as a significant factor contributing to treatment failure in this cohort.

Key Insights:

• Actuarial analysis revealed a substantial implant failure rate over time: 23% at five years and 50% at 11 years post-operation.
• This contrasts with the higher success rate suggested by conventional arithmetic calculations, highlighting the importance of long-term follow-up.

Outlook:

• Further research into strategies to mitigate Pseudomonas infections in total hip replacement revisions is warranted.
• Optimizing antibiotic elution profiles and surgical techniques may improve long-term outcomes for infected joint replacements.