Applied Bionics and Biomechanics

Applied Bionics and Biomechanics / 2008 / Article

Open Access

Volume 5 |Article ID 719467 |

Sudesh Sivarasu, Lazar Mathew, "Finite-Element-Based Design Optimisation of a Novel High Flexion Knee Used in Total Knee Arthroplasty", Applied Bionics and Biomechanics, vol. 5, Article ID 719467, 11 pages, 2008.

Finite-Element-Based Design Optimisation of a Novel High Flexion Knee Used in Total Knee Arthroplasty

Received09 Nov 2008


The application of finite-element modelling in medical applications has been evolving as a field of high importance in recent times. Total knee arthroplasty (TKA) has been in existence for over 6 decades. The generic artificial knee implants used in the TKA have a restricted range of motion of around 90 degrees. A new design allowing a flexion extension range of over 120 degrees was designed and is used for analysis. Loading conditions of 10 times the body weight are considered. The finite-element analyses of the designs were carried out based on standard biomaterials used in orthopaedic implants. The results of the analyses were used in identifying areas of extreme stress within the design and the spots prone to higher deformation. On the basis of these results slight modification of the designs was carried out. The results are also verified whether the body is within the linear deformation levels. The results obtained were very satisfactory and based on these results the models have been recommended for prototyping.

Copyright © 2008 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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