This paper establishes a procedure for numerical analysis of a hip joint using the finite volume method. Patient-specific hip joint geometry is segmented directly from computed tomography and magnetic resonance imaging datasets and the resulting bone surfaces are processed into a form suitable for volume meshing. A high resolution continuum tetrahedral mesh has been generated, where a sandwich model approach is adopted; the bones are represented as a stiffer cortical shells surrounding more flexible cancellous cores. Cartilage is included as a uniform thickness extruded layer and the effect of layer thickness is investigated. To realistically position the bones, gait analysis has been performed giving the 3D positions of the bones for the full gait cycle. Three phases of the gait cycle are examined using a finite volume based custom structural contact solver implemented in open-source software OpenFOAM.
Development of a Hip Joint Model for Finite Volume Simulations
Contributed by the Bioengineering Division of ASME for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received February 12, 2013; final manuscript received July 1, 2013; accepted manuscript posted October 19, 2013; published online December 3, 2013. Assoc. Editor: Tammy Haut Donahue.
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Cardiff, P., Karač, A., FitzPatrick, D., Flavin, R., and Ivanković, A. (December 3, 2013). "Development of a Hip Joint Model for Finite Volume Simulations." ASME. J Biomech Eng. January 2014; 136(1): 011006. https://doi.org/10.1115/1.4025776
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