Related Experiment Video

Updated: Aug 16, 2026

Multi-Scale Modification of Metallic Implants With Pore Gradients, Polyelectrolytes and Their Indirect Monitoring In vivo
12:19

Multi-Scale Modification of Metallic Implants With Pore Gradients, Polyelectrolytes and Their Indirect Monitoring In vivo

Published on: July 1, 2013

Polylactide-polyglycolide antibiotic implants

Kevin Garvin1, Connie Feschuk

  • 1University of Nebraska Medical Center, Omaha, 68198, USA. kgarvin@unmc.edu

Clinical Orthopaedics and Related Research
|August 2, 2005
PubMed

Insights

New biodegradable polymers offer a promising solution for delivering antibiotics directly to treat bone infections, minimizing side effects and improving effectiveness in orthopaedic surgery.

Area of Science:

  • Orthopaedic Surgery
  • Biomaterials Science
  • Infectious Disease Treatment

Background:

  • Orthopaedic infections pose a significant challenge, with current treatments lacking optimal effectiveness and side effect profiles.
  • While plaster of paris and polymethylmethacrylate (PMMA) have been used for localized antibiotic delivery, they present limitations such as inconsistent elution and the need for implant removal.
  • There is a critical need for advanced antibiotic delivery systems that are effective, well-tolerated, and absorbable.

Purpose of the Study:

  • To evaluate the potential of biodegradable polymers for localized antibiotic delivery in treating orthopaedic infections.
  • To explore antibiotic-impregnated polylactic acid, polyglycolic acid, or polyparadioxanone as absorbable systems for sustained antibiotic release.
  • To investigate the feasibility of antibiotic-polymer composites for managing bone infections.

Main Methods:

  • Review of existing literature on antibiotic delivery systems in orthopaedics.
  • Analysis of in vitro studies demonstrating antibiotic elution from bioabsorbable microspheres and beads.
  • Examination of in vivo animal studies (rabbits, dogs) using antibiotic-impregnated polymers to treat induced osteomyelitis.

Main Results:

  • In vitro studies show promising antibiotic elution profiles from biodegradable microspheres and beads.
  • In vivo animal testing demonstrated successful treatment of osteomyelitis using antibiotic-impregnated polymers.
  • Consistent and reproducible results in animal models suggest clinical potential.

Conclusions:

  • Biodegradable polymers represent a viable and effective platform for localized antibiotic delivery in orthopaedic infections.
  • Further research and human trials are warranted to assess the efficacy of antibiotic microspheres and polymer-coated components.
  • This approach holds the potential to improve treatment outcomes for chronic osteomyelitis and reduce associated side effects.

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