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Do Antibiotic-Impregnated Intramedullary Dowels Assist in Eradicating Infection in Total Knee Arthroplasty?
Michael M Kheir1, R Michael Meneghini2
1Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN.
Abstract:
Antibiotic-impregnated intramedullary dowels historically have been advocated and are frequently used to facilitate periprosthetic knee infection eradication. They are used for focused delivery of antibiotics into the femoral and tibial intramedullary canals during 2-stage resection utilizing an antibiotic cement spacer. However, the literature is limited on the use and efficacy of antibiotic-eluding intramedullary dowels in periprosthetic joint infection. We reviewed the available literature and have found that the data at this point are equivocal with respect to whether antibiotic-impregnated cement intramedullary dowels augment the intra-articular antibiotic cement spacer in eradicating infection in total knee arthroplasty. Thus, we believe that the decision to use dowels can be left up to the surgeon preference. However, further research is warranted to review operative room efficiency and healthcare costs, and to validate the clinical efficacy of antibiotic-impregnated dowels in periprosthetic joint infection.
Insights
Antibiotic-impregnated intramedullary dowels may not significantly improve periprosthetic knee infection eradication. Current evidence is inconclusive, suggesting their use is surgeon-dependent. Further research is needed to confirm efficacy and cost-effectiveness.
Area of Science:
- Orthopedic Surgery
- Infectious Disease Management
- Biomaterials Science
Background:
- Periprosthetic joint infections (PJIs) are a significant complication following total knee arthroplasty (TKA).
- Antibiotic-impregnated intramedullary dowels are employed for targeted antibiotic delivery during two-stage revision surgeries.
- Limited data exist on the specific efficacy of these dowels in PJI eradication.
Purpose of the Study:
- To evaluate the current literature on the use and efficacy of antibiotic-eluding intramedullary dowels in PJI.
- To determine if antibiotic-impregnated dowels enhance antibiotic cement spacers in TKA PJI treatment.
Main Methods:
- Systematic review of existing literature on antibiotic-impregnated intramedullary dowels in PJI.
- Analysis of studies investigating the role of dowels in conjunction with antibiotic cement spacers.
Main Results:
- Current literature provides equivocal evidence regarding the added benefit of antibiotic-impregnated intramedullary dowels.
- The data do not conclusively demonstrate that dowels augment intra-articular antibiotic cement spacers in eradicating TKA PJI.
Conclusions:
- The decision to use antibiotic-impregnated intramedullary dowels in TKA PJI treatment can be left to surgeon preference.
- Further research is warranted to assess operative room efficiency, healthcare costs, and validate clinical efficacy.
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