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Updated: Sep 14, 2025

A Novel Method to Determine the Longitudinal Antibacterial Activity of Drug-Eluting Materials
Published on: March 3, 2023
Defensive antibacterial coating in orthopaedic surgery: Current evidence and future direction
Richard Henry Randall Roberts1, Charles Gamble2, Ibrahim Malek2,3
1Department of Trauma and Orthopaedics, Wrexham Maelor Hospital, Wrexham LL13 7TD, United Kingdom. richard.roberts@doctors.org.uk.
Defensive antibacterial coating (DAC®) hydrogel shows promise in preventing infections after joint replacement surgery. This innovative coating reduces bacterial adhesion and delivers antibiotics, lowering recurrence rates in revision procedures.
Area of Science:
- Orthopaedic Surgery
- Biomaterials Science
- Infectious Diseases
Background:
- Periprosthetic joint infections (PJIs) are a major cause of morbidity and increased healthcare costs.
- Biofilm formation and bacterial adhesion are key mechanisms in PJIs.
- Novel strategies are needed to prevent and manage implant-related infections.
Purpose of the Study:
- To evaluate the efficacy of Defensive antibacterial coating (DAC®) hydrogel in preventing PJIs.
- To assess the impact of DAC® on infection recurrence in various orthopaedic procedures.
- To explore the potential of DAC® in reducing antibiotic use and hospital stays.
Main Methods:
- Review of early clinical evidence and data on DAC® hydrogel use.
- Analysis of DAC®'s mechanism of action, including bacterial adhesion reduction and antibiotic delivery.
- Assessment of DAC®'s compatibility with existing implants and surgical techniques.
Main Results:
- DAC® hydrogel demonstrates effectiveness in lowering infection recurrence in revision hip and knee arthroplasties.
- Additional benefits observed in trauma procedures and soft tissue repairs.
- DAC® is compatible with current implants and surgical protocols, potentially reducing antibiotic consumption and hospitalizations.
Conclusions:
- DAC® hydrogel is a promising strategy for combating PJIs and reducing infection recurrence.
- Further large-scale studies are needed, particularly for primary arthroplasty.
- DAC® has the potential to enhance patient outcomes and reduce the burden of implant-related infections.
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