scholarly journals Sensitivity of total knee replacement wear to variability in motion and load input: A parametric finite element analysis study

2020 ◽  
Vol 38 (7) ◽  
pp. 1538-1549
Author(s):  
Steven P. Mell ◽  
Markus A. Wimmer ◽  
Hannah J. Lundberg
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Element Analysis ◽  
Analysis Study ◽  
Total Knee ◽  
Parametric Finite Element Analysis

scholarly journals Optimal Conformity Design of Tibial Insert Component Based on ISO Standard Wear Test Using Finite Element Analysis and Surrogate Model

Symmetry ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2377
Author(s):  
Wisanupong Takian ◽  
Supakit Rooppakhun ◽  
Atthaphon Ariyarit ◽  
Sedthawatt Sucharitpwatskul
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Surrogate Model ◽  
Wear Test ◽  
Wear Volume ◽  
Element Analysis ◽  
Tibial Insert ◽  
Total Knee

Total knee replacement is a standard surgical treatment used to treat osteoarthritis in the knee. The implant is complicated, requiring expensive designs and testing as well as a surgical intervention. This research proposes a technique concerning the optimal conformity design of the symmetric polyethylene tibial insert component for fixed-bearing total knee arthroplasty. The Latin Hypercube Sampling (LHS) design of the experiment was used to create 30 cases of the varied tibial insert conformity that influenced the total knee replacement wear volume. The combination of finite element analysis and a surrogate model was performed to predict wear volume according to the standard of ISO-14243:2014 wear test and to determine the optimal conformity. In the first step, the results could predict wear volume between 5.50 to 72.92 mm3/106 cycle. The Kriging method of a surrogate model has then created the increased design based on the efficient global optimization (EGO) method with improving data 10 design points. The result revealed that the optimum design of tibial insert conformity in a coronal and sagittal plane was 0.70 and 0.59, respectively, with a minimizing wear volume of 3.07 mm3/106 cycle. The verification results revealed that the area surface scrape and wear volume are similar to those predicted by the experiment. The wear behavior on the tibial insert surface was asymmetry of both sides. From this study it can be concluded that the optimal conformity design of the tibial insert component can be by using a finite element and surrogate model combined with the design of conformity to the minimized wear volume.

Finite Element Analysis of a Total Knee Replacement by Using Gauss Point Contact Constraints

1996 ◽  
Vol 210 (1) ◽  
pp. 51-63 ◽  
Author(s):  
J E Mottershead ◽  
P D Edwards ◽  
M P Whelan ◽  
R G English
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Total Knee Replacement ◽  
Orthopaedic Surgery ◽  
Numerical Models ◽  
Point Contact ◽  
Gauss Point ◽  
Element Analysis ◽  
New Developments ◽  
Total Knee

Finite element methods have been applied extensively and with much success in the analysis of orthopaedic hip and knee implants. Very recently a burgeoning interest has developed, in the finite element community, in how numerical models can be constructed for the solution of problems in contact mechanics. New developments in this area are of paramount importance in the design of implants for orthopaedic surgery. Modern techniques are described for finite element contact analysis and applied to two problems of stress analysis in a plastic tibial component. In the former, results are compared with a previous finite element analysis and with Hertzian solutions. In the latter, an estimate of the extent of convergence of the finite element solutions is provided.

scholarly journals Morse taper performance: A finite element analysis study

Clinics ◽  
2019 ◽  
Vol 74 ◽  
Author(s):  
Gustavo Passarelli Petris ◽  
João Paulo De Carli ◽  
Luiz Renato Paranhos ◽  
Pâmela Letícia Santos ◽  
Paula Benetti ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Analysis Study

A finite element model for evaluation of tibial prosthesis-bone interface in total knee replacement

1992 ◽  
Vol 25 (12) ◽  
pp. 1413-1424 ◽  
Author(s):  
R.L. Rakotomanana ◽  
P.F. Leyvraz ◽  
A. Curnier ◽  
J.H. Heegaard ◽  
P.J. Rubin
Keyword(s):  
Finite Element ◽  
Total Knee Replacement ◽  
Finite Element Model ◽  
Knee Replacement ◽  
Element Model ◽  
Bone Interface ◽  
Total Knee
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