Finite Element Analysis as a Tool for Parametric Prosthetic Foot Design and Evaluation. Technique Development in the Solid Ankle Cushioned Heel (SACH) Foot

In this study, we developed an approach for prosthetic foot design incorporating motion analysis, mechanical testing and computer analysis. Using computer modeling and finite element analysis, a three-dimensional (3D), numerical foot model of the solid ankle cushioned heel (SACH) foot was constructe...

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Bibliographic Details
Published in:Computer methods in biomechanics and biomedical engineering 2003-02, Vol.6 (1), p.75-87
Main Authors: Saunders, Marnie M., Schwentker, Edwards P., Kay, David B., Bennett, Gordon, Jacobs, Christopher R., Verstraete, Mary C., Njus, Glen O.
Format: Article
Language:English
Subjects:
Amputation
Amputation - rehabilitation
Artificial Limbs
Computer Simulation
Elasticity
Equipment Failure Analysis - methods
Finite Element Analysis
Foot - physiopathology
Foot - surgery
Gait
Gait Analysis
Heel - physiopathology
Heel - surgery
Humans
Male
Materials Testing - methods
Mechanical Testing
Middle Aged
Models, Biological
Prosthesis
Prosthesis Design - methods
Quality Control
Stress, Mechanical
Viscosity
Weight-Bearing
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Summary:In this study, we developed an approach for prosthetic foot design incorporating motion analysis, mechanical testing and computer analysis. Using computer modeling and finite element analysis, a three-dimensional (3D), numerical foot model of the solid ankle cushioned heel (SACH) foot was constructed and analyzed based upon loading conditions obtained from the gait analysis of an amputee and validated experimentally using mechanical testing. The model was then used to address effects of viscoelastic heel performance numerically. This is just one example of the type of parametric analysis and design enabled by this approach. More importantly, by incorporating the unique gait characteristics of the amputee, these parametric analyses may lead to prosthetic feet more appropriately representing a particular user's needs, comfort and activity level.
ISSN:1025-5842
1476-8259
DOI:10.1080/1025584021000048974