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Related Experiment Video

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An engineering review of external fixators.

P L N Fernando1, Aravinda Abeygunawardane2, Pci Wijesinghe3

  • 1Centre for Biomedical Innovation, University of Moratuwa, Sri Lanka; Department of Mechanical Engineering, University of Moratuwa, Sri Lanka.

Medical Engineering & Physics
|December 1, 2021
PubMed
Summary

External fixators, crucial for bone treatments like fractures and limb lengthening, have evolved significantly. This review examines their structure, materials, and biomechanics, identifying research gaps for improved orthopaedic care.

Keywords:
Biomechanical testingComposite materialsExternal fixatorsFinite element modelling

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Area of Science:

  • Orthopaedic Surgery
  • Biomedical Engineering
  • Materials Science

Background:

  • External fixators are versatile orthopaedic devices used for treating bone issues, including fractures, deformities, and dislocations.
  • Their application spans from historical use (circa 400 BCE) to modern customized and optimized designs.
  • Engineering principles are integral to enhancing external fixator performance and application.

Purpose of the Study:

  • To review recent advancements in external fixator technology.
  • To focus on structural innovations, material applications, and biomechanical assessments.
  • To identify research gaps for future improvements in external fixator design and function.

Main Methods:

  • Literature review of recent developments in external fixator technology.
  • Analysis of structural designs and material properties.
  • Examination of experimental and numerical biomechanical investigations.

Main Results:

  • External fixators demonstrate significant versatility in treating various bone conditions.
  • Recent developments focus on customization and optimization through engineering integration.
  • Biomechanical investigations highlight areas for potential enhancement.

Conclusions:

  • Continued integration of orthopaedic needs with engineering knowledge is vital for external fixator advancement.
  • Addressing identified research gaps can lead to improved external fixator quality and patient outcomes.
  • Further research into structure, materials, and biomechanics will optimize clinical applications.