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Automatic anatomical foot and ankle coordinate toolbox.

Andrew C Peterson1, Karen M Kruger2,3, Amy L Lenz1,4

  • 1Department of Orthopaedics, University of Utah, Salt Lake City, UT, United States.

Frontiers in Bioengineering and Biotechnology
|November 29, 2023
PubMed
Summary
This summary is machine-generated.

A new MATLAB toolbox, AAFACT, automates anatomical coordinate system calculations for foot and ankle bones. This tool ensures accurate and reliable analysis for biomechanical and clinical studies across various pathologies.

Keywords:
anatomicautomated toolboxcoordinate systemfoot and anklefoot deformitiesmorphological variation

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Area of Science:

  • Biomechanics
  • Medical Imaging
  • Orthopedics

Background:

  • Accurate anatomical coordinate systems (ACS) are crucial for foot and ankle biomechanical and clinical research.
  • Existing ACS methods have limitations including manual input and oversimplification.
  • There is a need for standardized and automated ACS calculation for foot and ankle bones.

Purpose of the Study:

  • To develop and evaluate the Automatic Anatomical Foot and Ankle Coordinate Toolbox (AAFACT).
  • To provide a standardized, automated toolbox for calculating ACS for fourteen major foot and ankle bones.
  • To address limitations of existing ACS methods in foot and ankle research.

Main Methods:

  • Development of a MATLAB-based toolbox (AAFACT) for automated ACS calculation.
  • Evaluation using 56 bone models from seven pathological groups (asymptomatic, osteoarthritis, pilon fracture, etc.).
  • Three reliability analyses: automatic vs. manual segmentation, individual vs. group mean bones, and overall mean vs. group mean bones.
  • Statistical shape modeling for assessing reliability, accuracy, and precision.

Main Results:

  • AAFACT demonstrated consistency between automatically and manually calculated ACS.
  • Comparisons revealed accurate and precise ACS calculations for individual and group mean bones.
  • The toolbox effectively handles diverse foot and ankle pathologies and bone morphologies.

Conclusions:

  • AAFACT provides a practical, reliable, and automated solution for foot and ankle ACS calculation.
  • The toolbox enhances comparability and facilitates advancements in clinical and engineering foot and ankle research.
  • AAFACT overcomes limitations of manual input and non-physiological methods, offering a standardized approach.