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Investigation of femur fracture potential in common pediatric falls using finite element analysis

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  • Keyonna McKinsey
  • Angela Thompson
  • Gina Bertocci

Abstract

A finite element (FE) model of an 11-month-old child’s femur was developed to evaluate fracture risk in short-distance feet-first falls and bed falls. Pediatric material properties were applied to the FE model. Femur loading was derived from previously conducted fall experiments using a child surrogate where fall conditions (e.g., fall height, impact surface) were varied. Fracture thresholds based on principal stress and strain were used to examine potential for fracture. Peak stress/strain were significantly greater for feet-first falls from greater heights and onto harder impact surfaces. Feet-first falls exceeded some, but not all fracture thresholds. Bed falls did not exceed any fracture thresholds.

Suggested Citation

  • Keyonna McKinsey & Angela Thompson & Gina Bertocci, 2021. "Investigation of femur fracture potential in common pediatric falls using finite element analysis," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 24(5), pages 517-526, July.
    • Handle: RePEc:taf:gcmbxx:v:24:y:2021:i:5:p:517-526
    DOI: 10.1080/10255842.2020.1837119
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