A three-dimensional finite element model of maximal grip loading in the human wrist

Magnus K. Gislason, D.H. Nash, A.C. Nicol, A. Kanellopoulos, M. Bransby-Zachary, T. Hems, B. Condon, B. Stansfield

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The aim of this work was to create an anatomically accurate three-dimensional finite element model of the wrist, applying subject-specific loading and quantifying the internal load transfer through the joint during maximal grip. For three subjects, representing the anatomical variation at the wrist, loading on each digit was measured during a maximal grip strength test with simultaneous motion capture. The internal metacarpophalangeal joint load was calculated using a biomechanical model. High-resolution magnetic resonance scans were acquired to quantify bone geometry. Finite element analysis was performed, with ligaments and tendons added, to calculate the internal load distribution. It was found that for the maximal grip the thumb carried the highest load, an average of 72.2 ¡ 20.1 N in the neutral position. Results from the finite element model suggested that the highest regions of stress were located at the radial aspect of the carpus. Most of the load was transmitted through the radius, 87.5 per cent, as opposed to 12.5 per cent through the ulna with the wrist in a neutral position. A fully three-dimensional finite element analysis of the wrist using subject-specific anatomy and loading conditions was performed. The study emphasizes the importance of modelling a large ensemble of subjects in order to capture the spectrum of the load transfer through the wrist due to anatomical variation.
LanguageEnglish
Pages849-861
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume223
Issue number7
DOIs
Publication statusPublished - 1 Oct 2009

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Hand Strength
Wrist
Finite Element Analysis
Finite element method
Ligaments
Tendons
Magnetic resonance
Bone
Metacarpophalangeal Joint
Ulna
Thumb
Geometry
Anatomy
Magnetic Resonance Spectroscopy
Joints
Bone and Bones

Keywords

  • wrist biomechanics
  • gripping force
  • finite element analysis
  • wrist ligaments
  • load transmission

Cite this

Gislason, Magnus K. ; Nash, D.H. ; Nicol, A.C. ; Kanellopoulos, A. ; Bransby-Zachary, M. ; Hems, T. ; Condon, B. ; Stansfield, B. / A three-dimensional finite element model of maximal grip loading in the human wrist. In: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine . 2009 ; Vol. 223, No. 7. pp. 849-861.
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A three-dimensional finite element model of maximal grip loading in the human wrist. / Gislason, Magnus K.; Nash, D.H.; Nicol, A.C.; Kanellopoulos, A.; Bransby-Zachary, M.; Hems, T.; Condon, B.; Stansfield, B.

In: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine , Vol. 223, No. 7, 01.10.2009, p. 849-861.

Research output: Contribution to journalArticle

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