Numerical Measurement of a Virtual Model for the Knee Prosthesis Geometry

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.

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Development and Examination of a Knee Prosthesis Geometry

Műszaki Tudományos Közlemények ◽

10.33894/mtk-2019.11.03 ◽

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.

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The Contribution of the Cruciate Ligaments to the Load-Displacement Characteristics of the Human Knee Joint

Journal of Biomechanical Engineering ◽

10.1115/1.3138223 ◽

1980 ◽

Vol 102 (4) ◽

pp. 277-283 ◽

Cited By ~ 53

Author(s):

R. L. Piziali ◽

J. Rastegar ◽

D. A. Nagel ◽

D. J. Schurman

Keyword(s):

Knee Joint ◽

Soft Tissues ◽

Lateral Load ◽

Flexion Angle ◽

Cruciate Ligaments ◽

Significant Percentage ◽

Human Knee ◽

Human Knee Joint ◽

Torsional Loads ◽

Anterior Posterior

Human knee specimens were subjected to anterior-posterior, medial-lateral, varus-valgus, and torsional displacement tests. Loads were recorded for the intact joint and for the joint with all soft tissues cut except for the cruciate ligaments. The effect of condylar interference was determined for anterior-posterior, medial-lateral, and torsional displacements. The variation in load with flexion angle was considerable for medial-lateral (0–90-deg flexion) displacements, and less for varus-valgus (0–45-deg flexion) displacements. The cruciates were found to carry almost the entire anterior-posterior load; they carried a significant percentage of the medial-lateral load which varied considerably with flexion angle. A small, but not insignificant percentage of the varus-valgus load was carried by the cruciates and the variations with flexion angle were small. In torsion, the cruciates resisted only internal rotation. In the tested displacement ranges, condylar interference had a small effect on the medial-lateral load but did not affect anterior-posterior or torsional loads.

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Contributions on the dynamic simulation of the virtual model of the human knee joint

Materialwissenschaft und Werkstofftechnik ◽

10.1002/mawe.200800375 ◽

2009 ◽

Vol 40 (1-2) ◽

pp. 73-81 ◽

Cited By ~ 9

Author(s):

D. Tarnita ◽

D.N. Tarnita ◽

N. Bizdoaca ◽

D. Popa

Keyword(s):

Knee Joint ◽

Dynamic Simulation ◽

Virtual Model ◽

Human Knee ◽

Human Knee Joint

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A Review of Use FEM Techniques in Modeling of Human Knee Joint

Journal of Biomimetics Biomaterials and Biomedical Engineering ◽

10.4028/www.scientific.net/jbbbe.28.14 ◽

2016 ◽

Vol 28 ◽

pp. 14-25 ◽

Cited By ~ 3

Author(s):

Nitin Kumar Sahu ◽

Ajay Kumar Kaviti

Keyword(s):

Knee Joint ◽

Knee Replacement ◽

Knee Prosthesis ◽

Experimental Studies ◽

Fem Analysis ◽

Human Knee ◽

Replacement Surgery ◽

Analysis Process ◽

Human Knee Joint ◽

Joint Biomechanics

The human knee joint is very critical and complex joint of human body which is responsible for our optimal daily functions. It consists of various bones – femur, tibia, patella, fibula, different ligaments, cartilages, menisci and muscles. FEM is a very useful tool for the analysis of knee joint and various knee replacement products. In the knee replacement surgery a proper understanding of knee joint biomechanics is essential. Because of certain limitations of experimental studies, FEM analysis process is playing a significance role for prominent understanding of knee biomechanics and produced an effective and impressive tool for total knee replacement (TKR/TKA) or partial knee replacement (PKR/PKA). The aim of this paper is to give a review on FEM analysis of human knee joint and knee prosthesis devices and how much adequate this method for these type of analysis.

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Virtual Testing Method of Human Knee Prosthesis

International Journal of Engineering and Management Sciences ◽

10.21791/ijems.2019.1.48. ◽

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.

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Multibody dynamic models in biomechanics: modelling issues and a new model

International Journal Sustainable Construction & Design ◽

10.21825/scad.v3i2.20566 ◽

2012 ◽

Vol 3 (2) ◽

pp. 128-137

Author(s):

G. Fekete ◽

B. Csizmadia ◽

P. De Baets ◽

M.A. Wahab

Keyword(s):

Knee Joint ◽

Dynamic Models ◽

Relevant Literature ◽

Contact Forces ◽

Interface Failure ◽

Human Knee ◽

Multibody Model ◽

Human Knee Joint ◽

Multibody Dynamic ◽

Dynamics Models

In the surgical process of total knee replacement (TKR), it is well known that the three types of failureswhich are; a) unable to reproduce normal knee function, b) bone-implant interface failure c) wear duringuse. These failures are certainly due to the motion and the load that influence the prosthesis components.In this study, the modelling questions of the human knee joint will be discussed in relation only to themultibody dynamics models. Firstly, a summary is presented about the relevant literature, where themodels with their different features are presented and evaluated. The existing models are mainly focusedon the investigation of the ligaments (linear of non-linear properties), the description of the contact path,and contact forces during the motion, kinematics (rotation, abduction and adduction) and even the wearmechanism of the knee joint. The primal advantages of the multibody dynamics models are the easyadaptability in the mechanical parameters to carry out simulations and the connection with CAE programsthat helps the design of new prostheses. A new multibody model is also presented by the authors.

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