Article (Scientific journals)
Evaluation of a geometry-based knee joint compared to a planar knee joint
Sandholm, Anders; Schwartz, Cédric; Pronost, Nicolas et al.
2011In Visual Computer, 27, p. 161-171
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Keywords :
Knee joint; Inverse kinematics and dynamics; Joint reaction; Computed muscular control; Validation; Musculoskeletal model; OrthoLoad
Abstract :
[en] Today neuromuscular simulations are used in sev- eral fields, such as diagnostics and planing of surgery, to get a deeper understanding of the musculoskeletal system. Dur- ing the last year, new models and datasets have been pre- sented which can provide us with more in-depth simulations and results. The same kind of development has occurred in the field of studying the human knee joint using complex three dimensional finite element models and simulations. In the field ofmusculoskeletal simulations, no such knee joints can be used. Instead themost common knee joint description is an idealized knee joint with limited accuracy or a planar knee joint which only describes the knee motion in a plane. In this paper, a new knee joint based on both equations and geometry is introduced and compared to a common clinical planar knee joint. The two kinematical models are analyzed using a gait motion, and are evaluated using the muscle ac- tivation and joint reaction forces which are compared to in- vivo measured forces. We show that we are able to predict the lateral, anterior and longitudinal moments, and that we are able to predict better knee and hip joint reaction forces.
Disciplines :
Human health sciences: Multidisciplinary, general & others
Author, co-author :
Sandholm, Anders;  Ecole Polytechnique Fédérale de Lausanne - EPFL > Virtual Reality Lab
Schwartz, Cédric  ;  Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie générale et réadaptation
Pronost, Nicolas;  Ecole Polytechnique Fédérale de Lausanne - EPFL > Virtual Reality Lab.
de Zee, Mark;  Aalborg University > SMI center
Voigt, Michael;  Aalborg University > SMI center
Thalmann, Daniel;  Ecole Polytechnique Fédérale de Lausanne - EPFL > Virtual Reality Lab.
Language :
English
Title :
Evaluation of a geometry-based knee joint compared to a planar knee joint
Publication date :
2011
Journal title :
Visual Computer
ISSN :
0178-2789
eISSN :
1432-2315
Publisher :
Springer Science & Business Media B.V.
Volume :
27
Pages :
161-171
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
10.1007/s00371-010-0538-7
Available on ORBi :
since 31 January 2011

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