Three-dimensional contact dynamic model of the human knee joint during walking |
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Authors: | Email author" target="_blank">Joung?Hwan?MunEmail author Dae-Weon?Lee |
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Affiliation: | (1) Orthopaedic Research Laboratory, Departments of Biomedical Engineering and Orthopaedic Surgery, Virginia Commonwealth University, P.O. Box 843067, Richmond, VA 23284-3067, USA; |
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Abstract: | It is well known that the geometry of the articular surface has a major role in determining the position of articular contact
and the lines of action for the contact forces. The contact force calculation of the knee joint under the effect of sliding
and rolling is one of the most challenging issues in this field. We present a 3-D human knee joint model including sliding
and rolling motions and major ligaments to calculate the lateral and medial condyle contact forces from the recovered total
internal reaction force using inverse dynamic contact modeling and the Least-Square method. As results, it is believed that
the patella, muscles and tendon affect a lot for the internal reaction forces at the initial heel contact stage. With increasing
flexion angles during gait, the decreasing contact area is progressively shifted to the posterior direction on the tibia plateau.
In addition, the medial side contact force is larger than the lateral side contact force in the knee joint during normal human
walking. The total internal forces of the knee joint are reasonabe compared to previous studies. |
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Keywords: | |
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