Specimen-specific finite element prediction of surface strain at the distal radius in a fall configuration

Martin Revel (1) , François Bermond (2) , David Mitton (1) , Hélène Follet (1)

1 LYOS - Physiopathologie, diagnostic et traitements des maladies osseuses / Pathophysiology, Diagnosis & Treatments of Bone Diseases
2 LBMC UMR T9406 - Laboratoire de Biomécanique et Mécanique des Chocs

Distal radius fractures are the most common upper extremity fractures in adults (65 years and older) occurring after a fall from standing height or lower (Vogt et al. 2002). These fractures are associated with age related decline in bone quality and because they occur earlier in life than other osteoporotic fractures, they can be interpreted as a warning signal for later and more deleterious fractures (Melton et al. 2010). Subject-specific finite elements models have been proposed to evaluate both bone strain and fracture risk. The accuracy of these models is heavily dependent on material properties, boundary conditions and the chosen failure criterion that defines fracture threshold (Edwards and Troy 2012). The main aim of the current study was to assess the surface strains prediction of radius specimen-specific finite element models.

Mots clés: BONE STRENGTH; DISTAL RADIUS; FINITE ELEMENT MODEL; FORWARD FALL; NON-AXIAL LOADING

Domaines: Biomécanique [physics.med-ph]

Martin Revel, François Bermond, David Mitton, Hélène Follet. Specimen-specific finite element prediction of surface strain at the distal radius in a fall configuration. 45e Congrès de la Société de Biomécanique, Oct 2020, Metz, France. pp S257-S259, ⟨10.1080/10255842.2020.1815311⟩. ⟨hal-03003916v2⟩