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Biomechanical Testing of Murine Tendons
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OpenHands: An Open-Source Statistical Shape Model of the Finger Bones.

T A Munyebvu1, C D Metcalf1, C B Burson-Thomas1

  • 1University of Southampton, Southampton, UK.

Annals of Biomedical Engineering
|July 3, 2024
PubMed
Summary
This summary is machine-generated.

Statistical shape models of the hand

Keywords:
Anatomy modellingAnthropometricsDistal interphalangeal jointErgonomicsMachine LearningPrincipal component analysisProximal interphalangeal joint

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Area of Science:

  • Biomechanical Engineering
  • Medical Imaging Analysis
  • Anatomy

Background:

  • Statistical shape models (SSMs) are crucial for understanding anatomical variation.
  • Previous models often lack detailed joint analysis or are not publicly available.
  • Hand biomechanics requires accurate 3D representations of skeletal structures.

Purpose of the Study:

  • To develop and present open-source statistical shape models of the four finger phalanges.
  • To analyze the anatomical variations of the proximal and distal interphalangeal joints.
  • To provide a resource for hand biomechanical analysis and device design.

Main Methods:

  • A multi-body SSM pipeline was applied to computed tomography (CT) scans of 10 healthy right hands.
  • Data was segmented, meshed, and aligned, with pose neutralization to remove joint angle variations.
  • Principal Component Analysis (PCA) was used to identify modes of morphological variation.

Main Results:

  • The primary mode of variation (PC1) represented overall phalanx size.
  • Subsequent PCs captured variations in bone proportions and joint positioning.
  • Models yielded gross measurements of bone lengths and joint spaces.

Conclusions:

  • The developed SSMs offer detailed anatomical descriptions of finger bones and joints.
  • These open-source models support hand biomechanics research and the design of hand-interfacing products.
  • The models represent a specific demographic and should be used cautiously for broader populations.