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A validated computational framework to evaluate the stiffness of 3D printed ankle foot orthoses

Author

Listed:
  • Alessio Ielapi
  • Nicolas Lammens
  • Wim Van Paepegem
  • Malcolm Forward
  • Jan Patrick Deckers
  • Miguel Vermandel
  • Matthieu De Beule

Abstract

The purpose of this study was to create and validate a standardized framework for the evaluation of the ankle stiffness of two designs of 3D printed ankle foot orthoses (AFOs). The creation of four finite element (FE) models allowed patient-specific quantification of the stiffness and stress distribution over their specific range of motion during the second rocker of the gait. Validation was performed by comparing the model outputs with the results obtained from a dedicated experimental setup, which showed an overall good agreement with a maximum relative error of 10.38% in plantarflexion and 10.66% in dorsiflexion. The combination of advanced computer modelling algorithms and 3D printing techniques clearly shows potential to further improve the manufacturing process of AFOs.

Suggested Citation

  • Alessio Ielapi & Nicolas Lammens & Wim Van Paepegem & Malcolm Forward & Jan Patrick Deckers & Miguel Vermandel & Matthieu De Beule, 2019. "A validated computational framework to evaluate the stiffness of 3D printed ankle foot orthoses," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 22(8), pages 880-887, June.
    • Handle: RePEc:taf:gcmbxx:v:22:y:2019:i:8:p:880-887
    DOI: 10.1080/10255842.2019.1601712
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    Cited by:

    1. Hasan Mhd Nazha & Szabolcs Szávai & Daniel Juhre, 2023. "An Overview of Mathematical Methods Applied in the Biomechanics of Foot and Ankle–Foot Orthosis Models," J, MDPI, vol. 7(1), pages 1-18, December.

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