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The role of silver coating for arthroplasty components
Anna Diez-Escudero1, Nils P Hailer1
1Department of Surgical Sciences, Uppsala University Hospital, Uppsala, Sweden.
The Bone & Joint Journal
|March 1, 2021
Summary
Silver coatings on arthroplasty implants show promise for preventing infection but raise concerns about toxicity and efficacy. Future strategies aim to balance antimicrobial effects with bone integration for safer, more effective implants.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Infectious Disease
Background:
- Periprosthetic joint infection (PJI) is a significant complication following arthroplasty.
- Silver coatings are explored for antibacterial properties on orthopedic implants.
- Existing silver coatings raise concerns regarding eukaryotic cell toxicity and controversial PJI prevention efficacy.
Purpose of the Study:
- To review silver coating methods for arthroplasty components.
- To analyze silver release rates and clinical experiences with silver-coated implants.
- To discuss strategies for balancing silver's effects on bacteria and host cells for bone-ingrowth applications.
Main Methods:
- Literature review of silver coating techniques for arthroplasty implants.
- Analysis of studies on silver release kinetics and duration.
- Examination of clinical data and safety profiles of silver-coated implants.
Main Results:
- Various silver coating methods exist, differing in silver content and release profiles.
- Clinical use of silver-coated implants is limited, with mixed results on PJI prevention and safety concerns like argyria.
- Silver's impact on osteoconductivity for cementless fixation remains a critical consideration.
Conclusions:
- Optimizing silver content is crucial to inhibit bacteria while preserving osteoconductivity for bone-contact surfaces.
- Further research is needed to develop safe and effective silver-coated titanium implants for bone ingrowth.
- Balancing antimicrobial efficacy with host cell safety is key for future silver-based implant development.
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