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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
10:43

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

Antibacterial coating systems

Andrea Montali1

  • 1Synthes GmbH, Oberdorf, Switzerland. montali.andrea@synthes.com

Injury
|May 3, 2006
PubMed

Insights

Local antibiotic delivery using polymethylmethacrylate (PMMA) has limitations. Resorbable antibacterial coatings for orthopedic implants offer a promising alternative for effective infection control in fracture care.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Infectious Disease Management

Background:

  • Local antibiotic delivery is a clinically established method for combating bacterial infections, particularly in orthopedic fracture care.
  • Polymethylmethacrylate (PMMA) is a common, non-resorbable carrier for antibiotics, but a significant portion of the antibiotic remains trapped, reducing its efficacy.
  • This inefficiency necessitates exploring alternative delivery systems for improved antibacterial action.

Purpose of the Study:

  • To evaluate the potential of antibacterial coatings on metal implants as an improved method for local antibiotic delivery in fracture treatment.
  • To investigate novel coating technologies and resorbable materials for enhanced antibiotic release and efficacy.
  • To address the limitations of current non-resorbable antibiotic carriers in orthopedic applications.

Main Methods:

  • Review of existing literature on local antibiotic application methods in fracture care.
  • Investigation of various coating technologies for metal implants, utilizing different carrier and antibacterial substances.
  • Analysis of studies focusing on resorbable coatings, specifically gentamicin sulphate, in preclinical and clinical settings.

Main Results:

  • Non-resorbable PMMA carriers sequester a large percentage of antibiotics, limiting their availability for infection control.
  • Fully resorbable coatings containing gentamicin sulphate have shown positive outcomes in animal models.
  • Successful clinical implantation of intramedullary tibial nails with resorbable antibacterial coatings has been reported.

Conclusions:

  • Resorbable antibacterial coatings on orthopedic implants represent a significant advancement over traditional PMMA carriers.
  • Future research should focus on optimizing drug release profiles and selecting appropriate antibacterial agents to maximize efficacy and minimize resistance.
  • Tailored antibacterial coatings hold promise for enhanced infection prevention in fracture management.

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