PMID: 12751285May 20, 2003Paper

A spatial mechanism with higher pairs for modelling the human knee joint

Journal of Biomechanical Engineering
Raffaele Di Gregorio, Vincenzo Parenti-Castelli

Abstract

By generalizing a previous model proposed in the literature, a new spatial kinematic model of the knee joint passive motion is presented. The model is based on an equivalent spatial parallel mechanism which relies upon the assumption that fibers within the anterior cruciate ligament (ACL), the medial collateral ligament (MCL) and the posterior cruciate ligament (PCL) can be considered as isometric during the knee flexion in passive motion (virtually unloaded motion). The articular surfaces of femoral and tibial condyles are modelled as 3-D surfaces of general shapes. In particular, the paper presents the closure equations of the new mechanism both for surfaces represented by means of scalar equations that have the Cartesian coordinates of the points of the surface as variables and for surfaces represented in parametric form. An example of simulation is presented in the case both femoral condyles are modelled as ellipsoidal surfaces and tibial condyles as spherical surfaces. The results of the simulation are compared to those of the previous models and to measurements. The comparison confirms the expectation that a better approximation of the tibiofemoral condyle surfaces leads to a more accurate model of the knee passive motion.

References

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Citations

Feb 14, 2007·Medical & Biological Engineering & Computing·R Di GregorioA Leardini
Jul 18, 2015·IEEE Transactions on Bio-medical Engineering·Ilan Eskinazi, Benjamin J Fregly
Dec 24, 2010·Journal of Biomechanics·C BelvedereF Catani
Jun 27, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Ashley HeuijerjansCorrinus C van Donkelaar
Apr 26, 2016·Journal of Biomechanical Engineering·Giuliano LambertoAurelio Cappozzo
Sep 20, 2011·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·N SancisiA Leardini
Nov 9, 2010·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·A OttoboniA Leardini
Feb 5, 2021·Journal of Biomechanical Engineering·Mauricio Arredondo-SotoHector A Moreno
Aug 17, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Matthieu FuretPhilippe Wenger

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