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Knee Ligament Bundle Splitting

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  • Knee Ligament Bundle Splitting

    I am interested in developing constitutive models of the
    four main human knee ligaments (ACL, PCL, MCL, LCL). After
    an extensive literature search, I have found that both of
    the cruciate ligaments are comprised, functionally and
    anatomically, of two bundles of fibers that are not exactly
    parallel to the long axis of the ligament. It seems that
    one bundle from each cruciate ligament is in tension during
    knee flexion, and that the other bundle from each ligament
    is in tension during knee extension.

    I am interested in what thoughts any of you might have on
    the reproducibility of splitting the ACL into its
    antero-medial, and postero-lateral bundles (as well the PCL
    into its antero-lateral and postero-medial bundles). Also
    since we need to keep the ligament-bone attachment site
    intact, I am interested in the possibility of reproducibly
    cutting the bone in between segments to leave each ligament
    bundle in a bone-ligament-bone orientation.

    The tests we are running are mostly step and hold tests
    (tensile) with some sine and triangle wave tests as well.

    Thank you for any assistance and/or comments you might be
    able to provide. I will summarize and post the responses.
    Jason R. Kerrigan

    University of Virginia
    Center for Applied Biomechanics
    1011 Linden Ave.
    Charlottesville, VA 22902
    (434) 296-7288 (O)
    (434) 296-3453 (F)

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