Journal ArticleDOI
Modeling, Simulation and Optimization of a Human Knee Orthotic Device
TLDR
In this article, a 3D virtual model for an orthotic device which is subjected to an optimization process based on dimensional, geometric and material criteria is analyzed. And the results obtained for the normal knee, OA knee, and oA knee-orthosis assemblies are compared.Abstract:
In order to improve the quality of human walking, the present paper is analyzing a 3D virtual model for an orthotic device which is subjected to an optimization process based on dimensional, geometric and material criteria. For geometric modeling of the human knee joint were used the embedded applications: DesignModeler, SpaceClaim under AnsysWorkbench software package and for the orthotic device it was used ProEngineer application. The orthotic device is designed to rehabilitate people with knee problems, especially for the osteoarthritis affection. The geometric model of the joint shows a 50 tilt in varus, the joint beeing affected by osteoarthritis in the medial compartment. Using Ansys simulation environment, the virtual assembly joint orthois has been subjected to a nonlinear analysis based on the contacts and on the materials used. The proposed orthotic device seeks to improve the quality of walking by minimizing the loads from the knee joint, also on cartilage and on the menisci. Finally there are beeing compared the results obtained for normal knee, OA knee and OA knee-orthosis assemblies.read more
Citations
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Book ChapterDOI
Numerical Simulations and Experimental Human Gait Analysis Using Wearable Sensors
TL;DR: A comparison between an experimental study of flexion-extension movement in human legs joints and numerical simulations on a virtual mannequin computed in ADAMS virtual environment is presented.
Journal ArticleDOI
Stress distribution of the tibiofemoral joint in a healthy versus osteoarthritis knee model using image-based three-dimensional finite element analysis
Kulchamai Thienkarochanakul,Akbar A. Javadi,Mohammad Ali Akrami,Joseph Robert Charnley,Abdelmalek Benattayallah +4 more
TL;DR: The results suggest that any treatment for knee osteoarthritis should focus more on the medial region of the tibiofemoral cartilage in order not to cause degradation.
Dissertation
Effect of foot supports on knee joint loading
TL;DR: The reader agrees to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
Journal ArticleDOI
Actuation Systems of Active Orthoses Used for Gait Rehabilitation
TL;DR: This paper analyzes different lower-limb active orthoses used for gait rehabilitation function of actuation system to find out which ones are most suitable for human gait rehab.
Journal ArticleDOI
Modelling of the Human Knee Joint Supported by Active Orthosis
Victor Musalimov,Y. Monahov,Mart Tamre,Dmitri Rõbak,Alina Sivitski,Gennady Aryassov,Igor Penkov +6 more
TL;DR: An active smart orthosis design was optimized to achieve an energy saving system with sufficient anatomy, necessary reliability, easy exploitation and low cost.
References
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Journal ArticleDOI
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TL;DR: The results indicate that patients who have varus gonarthrosis may benefit significantly from use of a knee brace in addition to standard medical treatment.
Journal ArticleDOI
Custom-designed orthopedic implants evaluated using finite element analysis of patient-specific computed tomography data: femoral-component case study
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Journal ArticleDOI
A comparison of knee braces during walking for the treatment of osteoarthritis of the medial compartment of the knee
TL;DR: Although both braces improved confidence and function during gait, the valgus brace showed greater benefit, according to the findings of this cross-over study.
Journal Article
Stress distribution in the ankle-foot orthosis used to correct pathological gait.
Tai-Ming Chu,Narender P. Reddy +1 more
TL;DR: A quasi-static 3-D finite element analysis of the AFO complex confirmed the hypotheses that the maximum peak stress occurs in the neck, heel, and side-arc region ofThe AFO, and high stress concentration in the necks region observed in the present analysis is consistent with the common clinical observation that AFOs break down in theneck region.
Stress strain analysis of knee joint
Martin Kubíček,Zdeněk Florian +1 more
TL;DR: This review deals with the stress strain analysis of the normal tibio-femoral joint in its basic position (extension) and a contact pressure between a femoral and tibial cartilage and femoralcartilage and meniscus has been obtained.