Title :
Three-dimensional finite element modeling of a cervical vertebra: a new approach to investigating injury mechanism in the cervical spine
Author :
Bozic, K.J. ; Keyak, J.H. ; Skinner, H.B. ; Bueff, H.U. ; Bradford, D.S.
Author_Institution :
Sch. of Med., California Univ., San Francisco, CA, USA
Abstract :
To study the mechanical behavior of the cervical spine under varied loading conditions, it is necessary to use models that accurately represent the geometry and material properties of the bony elements. The wide variation in material properties of vertebral bone necessitates the use of 3-D finite element (FE) modeling techniques with a high density of elements to predict bone stress. The authors have developed an FE model that can represent the complex geometry and nonhomogeneous material properties of vertebral bone and can be used for investigating cervical vertebral body stresses. As an illustrative case, they have modeled a cervical vertebra under axial compressive loading in order to examine the mechanism of cervical burst fractures.
Keywords :
biomechanics; bone; finite element analysis; physiological models; 3D finite element modelling; axial compressive loading; bone stress prediction; bony elements; cervical burst fractures; cervical spine; cervical vertebra; complex geometry; injury mechanism; nonhomogeneous material properties; Bones; Compressive stress; Computed tomography; Finite element methods; Geometry; Material properties; Safety; Solid modeling; Springs; Surface cracks;
Conference_Titel :
Biomedical Engineering Conference, 1993., Proceedings of the Twelfth Southern
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0976-6
DOI :
10.1109/SBEC.1993.247349
