Tensile tests and biphasic finite element modeling were used to determine a set of transversely isotropic properties for the meniscus, including the hydraulic permeability coefficients and solid matrix properties. Stress-relaxation tests were conducted on planar samples of canine meniscus samples of different orientations, and the solid matrix properties were determined from equilibrium data. A 3-D linear biphasic and tranversely isotropic finite element model was developed to model the stress-relaxation behavior of the samples in tension, and optimization was used to determine the permeability coefficients, and governing fluid flow parallel and perpendicular to the collagen fibers, respectively. The collagen fibrillar orientation was observed to have an effect on the Young’s moduli and Poisson’s ratios However, a significant effect of anisotropy on permeability was not detected The low permeability values determined in this study provide insight into the extent of fluid pressurization in the meniscus and will impact modeling predictions of load support in the meniscus.
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June 2002
Technical Papers
Experimental and Biphasic FEM Determinations of the Material Properties and Hydraulic Permeability of the Meniscus in Tension1
Michelle A. LeRoux, ASME Assoc. Mem.,
Michelle A. LeRoux, ASME Assoc. Mem.
Department of Biomedical Engineering, Duke University, Durham, NC
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Lori A. Setton, ASME Mem.
Lori A. Setton, ASME Mem.
Department of Biomedical Engineering, Duke University, Durham, NC
Search for other works by this author on:
Michelle A. LeRoux, ASME Assoc. Mem.
Department of Biomedical Engineering, Duke University, Durham, NC
Lori A. Setton, ASME Mem.
Department of Biomedical Engineering, Duke University, Durham, NC
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division August 28, 2001; revised manuscript received January 9, 2002. Associate Editor: L. J. Soslowsky.
J Biomech Eng. Jun 2002, 124(3): 315-321 (7 pages)
Published Online: May 21, 2002
Article history
Received:
August 28, 2001
Revised:
January 9, 2002
Online:
May 21, 2002
Citation
LeRoux, M. A., and Setton, L. A. (May 21, 2002). "Experimental and Biphasic FEM Determinations of the Material Properties and Hydraulic Permeability of the Meniscus in Tension." ASME. J Biomech Eng. June 2002; 124(3): 315–321. https://doi.org/10.1115/1.1468868
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