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Related Experiment Videos

Enumeration of human knee prostheses--an overview

V Balaraman1, Y P Singh

  • 1University of Texas at San Antonio 78249, USA.

Biomedical Sciences Instrumentation
|January 1, 1995
PubMed
Summary

This study classifies human knee prostheses by motion, including implants and external devices. A new system aids clinicians in selecting optimal knee mechanisms for improved patient outcomes.

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Area of Science:

  • Biomechanics
  • Biomedical Engineering
  • Orthopedic Prosthetics

Background:

  • Clinicians often prescribe limited knee prosthesis options due to lack of comprehensive comparative data.
  • A need exists for a unified perspective on the diverse range of available knee mechanisms.

Observation:

  • Human knee prostheses, encompassing both internal implants and external devices, were enumerated based on their functional motion.
  • A historical overview of knee prosthesis development is presented.
  • A classification system for internal and external prostheses was developed, categorizing them by primary function.

Findings:

  • Knee prostheses are classified as monocentric (fixed rotation center) or polycentric (variable rotation center).
  • Implants are further divided into hinged and non-hinged categories.
  • External prostheses are classified by their functional control during swing and stance phases and extension.

Implications:

  • This hierarchical classification benefits kinematicians and designers for analyzing and improving knee prosthesis mechanisms.
  • Provides prosthetists with a valuable reference for selecting appropriate knee prostheses.
  • Aims to enhance the selection and design process for human knee prostheses.

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