Show simple item record

contributor authorG. Li
contributor authorJ. Gil
contributor authorA. Kanamori
contributor authorS. L.-Y. Woo
date accessioned2017-05-08T23:58:58Z
date available2017-05-08T23:58:58Z
date copyrightDecember, 1999
date issued1999
identifier issn0148-0731
identifier otherJBENDY-25898#657_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/121765
description abstractThis paper presents a three-dimensional finite element tibio-femoral joint model of a human knee that was validated using experimental data. The geometry of the joint model was obtained from magnetic resonance (MR) images of a cadaveric knee specimen. The same specimen was biomechanically tested using a robotic/universal force-moment sensor (UFS) system and knee kinematic data under anterior-posterior tibial loads (up to 100 N) were obtained. In the finite element model (FEM), cartilage was modeled as an elastic material, ligaments were represented as nonlinear elastic springs, and menisci were simulated by equivalent-resistance springs. Reference lengths (zero-load lengths) of the ligaments and stiffness of the meniscus springs were estimated using an optimization procedure that involved the minimization of the differences between the kinematics predicted by the model and those obtained experimentally. The joint kinematics and in-situ forces in the ligaments in response to axial tibial moments of up to 10 Nm were calculated using the model and were compared with published experimental data on knee specimens. It was also demonstrated that the equivalent-resistance springs representing the menisci are important for accurate calculation of knee kinematics. Thus, the methodology developed in this study can be a valuable tool for further analysis of knee joint function and could serve as a step toward the development of more advanced computational knee models.
publisherThe American Society of Mechanical Engineers (ASME)
titleA Validated Three-Dimensional Computational Model of a Human Knee Joint
typeJournal Paper
journal volume121
journal issue6
journal titleJournal of Biomechanical Engineering
identifier doi10.1115/1.2800871
journal fristpage657
journal lastpage662
identifier eissn1528-8951
keywordsKnee
keywordsSprings
keywordsKinematics
keywordsForce
keywordsElectrical resistance
keywordsStress
keywordsMagnetic resonance
keywordsFinite element methods
keywordsFinite element analysis
keywordsOptimization
keywordsRobotics
keywordsGeometry
keywordsSensors
keywordsStiffness AND Cartilage
treeJournal of Biomechanical Engineering:;1999:;volume( 121 ):;issue: 006
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record