Daptomycin resistance in prosthetic joint infections

Area of Science:

• Infectious Diseases
• Microbiology
• Orthopedic Surgery

Background:

• Antimicrobial resistance is a significant global health concern, complicating treatment of bacterial infections.
• Prosthetic joint infections (PJIs) often necessitate prolonged antibiotic therapy, increasing the risk of resistance development.
• The emergence of multidrug-resistant organisms poses a serious challenge in clinical practice, particularly in orthopedics.

Observation:

• This case report details a daptomycin-resistant heterogenous vancomycin intermediate-resistant Staphylococcus aureus (hVISA) infection in an 82-year-old male following elective total knee arthroplasty.
• The patient developed a deep prosthetic joint infection, which was subsequently treated.
• This represents the first documented instance of daptomycin resistance in a prosthetic joint infection setting.

Findings:

• The study identifies and describes a rare case of daptomycin-resistant hVISA.
• A literature review confirms the increasing prevalence of multidrug-resistant organisms globally.
• Worldwide reports of hVISA are reviewed, contextualizing the significance of this finding.

Implications:

• The findings emphasize the critical need for novel antimicrobial agents with unique mechanisms of action.
• Strategies to mitigate the development and spread of antibiotic resistance are crucial for effective patient management.
• This case highlights the importance of monitoring antimicrobial susceptibility patterns in orthopedic infections to guide treatment decisions.