scholarly journals Virtual Testing Method of Human Knee Prosthesis

2019 ◽  
Vol 4 (1) ◽  
pp. 386-392
Author(s):  
Zehouani Kheireddine ◽  
István Oldal
Keyword(s):  
Knee Joint ◽  
Knee Prosthesis ◽  
Total Knee Prosthesis ◽  
Virtual Testing ◽  
Human Knee ◽  
Testing Method ◽  
Human Knee Joint ◽  
Total Knee ◽  
The Common

In the human knee joint, a degenerative wear of the joint can be formed, the common treatment of this disease is the total knee prosthesis geometry replacement and prosthesis implanting, the aim of our research is the study of the human knee joint with applications in prosthesis, we will develop a method by creating a virtual knee prosthesis geometries, we will generate the geometries using the ADAMS program and examined on a special knee prosthesis qualification equipment.

scholarly journals Development and Examination of a Knee Prosthesis Geometry

2019 ◽  
Vol 11 (1) ◽  
pp. 27-30
Author(s):  
Gábor Péter Balassa
Keyword(s):  
Knee Joint ◽  
Research Team ◽  
Knee Prosthesis ◽  
Experimental Measurements ◽  
Joint Movement ◽  
Knee Prostheses ◽  
Healthy Human ◽  
Human Knee ◽  
Human Knee Joint ◽  
Number Of Patients

Abstract The necessity for the knee prosthesis is confirmed by the large increase in the number of patients suffering from arthrosis, which is a present-day disease. Despite this need, there doesn’t exist an optimal knee prosthesis. Nowadays the development of the knee prostheses is progressing. It is very difficult to define the required geometry with traditional methods, because the movement conditions to be created by the prostheses should be similar to the movements of the human knee. During previous research the biomechanical research team of the Szent István University occupied with experimental measurements of the healthy human knee joint movement. In this paper I would like to introduce a method of prosthesis geometry development. As a result, a knee prosthesis geometry has been created which is approaching the movement form of the real human knee joint.

THU0442 Knee Joint Distraction Compared with Total Knee Prosthesis: A Randomized Controlled Trial (Preliminary Results)

2015 ◽  
Vol 74 (Suppl 2) ◽  
pp. 359.3-360
Author(s):  
J.-T. van der Woude ◽  
K. Wiegant ◽  
R.J. van Heerwaarden ◽  
S. Spruijt ◽  
P.M. van Roermund ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Knee Joint ◽  
Knee Prosthesis ◽  
Controlled Trial ◽  
Total Knee Prosthesis ◽  
Preliminary Results ◽  
Randomized Controlled ◽  
Joint Distraction ◽  
Total Knee

scholarly journals A Modeling Method of Human Knee Joint Based on Biomechanics

2020 ◽  
Vol 179 ◽  
pp. 02096
Author(s):  
Jin Gao ◽  
Yajing Wang ◽  
Yahui Cui ◽  
Xiaomin Ji ◽  
Xupeng Wang
Keyword(s):  
Knee Joint ◽  
Geometric Model ◽  
Processing Method ◽  
Element Analysis ◽  
Human Knee ◽  
Human Knee Joint ◽  
Modeling Software ◽  
Total Knee ◽  
3D Geometric Model

In order to establish an accurate model of human knee joint, which lays a foundation for the follow-up finite element analysis of knee joint and biomechanics analysis, the paper based on the theory of biomechanics and MRI, with the help of professional modeling software, provides a 3D geometric model modeling and materialization processing method of knee joint, and established a total knee joint model including femur, tibia, fibular, meniscus, cartilage, ligament and other related structures.

Human Knee Joint Anatomy Revisited: Morphometry in the Light of Sex-Specific Total Knee Arthroplasty

2011 ◽  
Vol 26 (3) ◽  
pp. 346-353 ◽  
Author(s):  
Jens Dargel ◽  
Joern W.P. Michael ◽  
Janna Feiser ◽  
Roland Ivo ◽  
Juergen Koebke
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Joint ◽  
Knee Arthroplasty ◽  
Human Knee ◽  
Human Knee Joint ◽  
Total Knee

Influences of Varus Tilt on the Stresses in Human Prosthetic Knee Joint

2016 ◽  
Vol 823 ◽  
pp. 143-148 ◽  
Author(s):  
Dan Calafeteanu ◽  
Daniela Tarniţă ◽  
Marius Catana ◽  
Dan Tarnita
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Knee Joint ◽  
Knee Prostheses ◽  
Element Analysis ◽  
Human Knee ◽  
Prosthetic Knee ◽  
Ansys Simulation ◽  
Human Knee Joint ◽  
Total Knee

In this paper the effects of varus tilt on contact stresses in the three components of total knee prostheses using 3D finite element analysis were investigated. Using Ansys simulation environment, six complex virtual models of human knee joint–prosthesis assembly obtained for six different varus tilts which increase from 176o to 191o, with an increment of 3o have been subjected to finite element analysis in order to obtain the stress maps and total displacements maps.

scholarly journals Numerical Measurement of a Virtual Model for the Knee Prosthesis Geometry

2021 ◽  
Vol 11 (6) ◽  
pp. 2541
Author(s):  
Kheireddine Zehouani ◽  
Oldal István
Keyword(s):  
Knee Joint ◽  
Knee Prosthesis ◽  
Flexion Angle ◽  
Test Machine ◽  
Virtual Model ◽  
Human Knee ◽  
Average Value ◽  
Multibody Model ◽  
Human Knee Joint ◽  
Study Results

The human knee joint usually suffers progressive deterioration with time. The conventional cure of this issue is to replace it with an alternate knee by applying the prosthesis implant. The reason is that the process causes the abrasion of the different materials rather than just sliding or rolling. This study aims to develop the numerical measurement of the knee prosthesis’s geometry, which fulfils the mechanical requirements of the human knee. The MSC.ADAMS programme was applied to demonstrate the movement of the human knee joint in terms of rotation and flexion. The changes between the condyles of the developed multibody of the prosthesis related to the flexion angle ranging from 20–120° were investigated and presented. The boundary conditions were determined, and simulations performed using the ADAM’s programme. An average value of 0.7 was reached for the slip ration, with the maximum getting up to 0.79. An angle between 110–120° for the flexion angle was obtained. It can be said that the application of the multibody model saves time as there is no involvement of the tibia and the femur as required for the knee prosthesis. More importantly, as the application of the test machine is omitted in our process, our model’s approximations to a human knee are carried out directly. Without cost, several measurements for the knee prosthesis could be made and repaired. The study results provide the necessary insight for future tests regarding the movement of the knee joint.

Influences of Antero-Posterior Tibial Slope on the Prosthetic Knee Contact Stresses

2016 ◽  
Vol 823 ◽  
pp. 137-142
Author(s):  
Dan Calafeteanu ◽  
Dan Tarnita ◽  
Marius Catana ◽  
Daniel Calin ◽  
Daniela Tarniţă
Keyword(s):  
Knee Prosthesis ◽  
Tibial Slope ◽  
Contact Stresses ◽  
Posterior Tibial Slope ◽  
Human Knee ◽  
Prosthetic Knee ◽  
Posterior Tibial ◽  
Human Knee Joint ◽  
Total Knee ◽  
3D Finite Element Method

In this paper, using 3D finite element method and starting from the virtual model of the human knee joint-prosthesis assembly, we investigate the effects of antero-posterior tibial slope on contact stresses in the three components of total knee prosthesis. Using AnsysWorkbench15.07 software, the stress and displacements maps are obtained for knee-prosthesis assemblies and for their components, considering two loading force: 800N and 2400N and two cases of prosthetic knee varus slope: 176o and b) 191o. For each prosthesis-knee assembly and for each considered force, two variants of antero-posterior tibial slope were considered: 00 and 50.

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