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TECHNICAL PAPERS

3-D Anatomically Based Dynamic Modeling of the Human Knee to Include Tibio-Femoral and Patello-Femoral Joints

[+] Author and Article Information
Dumitru I. Caruntu, Mohamed Samir Hefzy

Biomechanics and Assistive Technology Laboratory, Department of Mechanical, Industrial and Manufacturing Engineering, The University of Toledo, Toledo, Ohio, USA 43606e-mail: mhefzy@eng.utoledo.edu

J Biomech Eng 126(1), 44-53 (Mar 09, 2004) (10 pages) doi:10.1115/1.1644565 History: Received August 20, 2002; Revised August 25, 2003; Online March 09, 2004
Copyright © 2004 by ASME
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References

Figures

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Tibio-femoral and patello-femoral joint coordinate systems.
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3-D model of the knee joint (tibio-femoral and patello-femoral joints) showing the collateral and cruciate ligaments
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Initial and final positions during knee extension exercise simulation
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Forcing functions applied to the quadriceps tendon to simulate knee extension exercise.
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Duration of knee extension exercise for different quadriceps forcing functions
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Internal-external tibial rotations and varus-valgus rotations versus knee flexion angle for different quadriceps forcing functions
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Patellar flexion angle versus knee flexion angle for different quadriceps forcing functions
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Medial and lateral components of the tibio-femoral contact force versus knee flexion angle for different quadriceps forcing functions
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Lateral and medial components of the patello-femoral contact force versus knee flexion angle for different quadriceps forcing functions
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Forces in the anterior and posterior fibers of the ACL versus knee flexion angle for different quadriceps forcing functions
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Forces in the anterior and posterior fibers of the PCL versus knee flexion angle for different quadriceps forcing functions
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Ratio of total patello-femoral contact force to quadriceps force versus knee flexion angle: comparison between model predictions and published experimental data and other quasi-static models’ predictions

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