On the numerical analysis of contact stresses in a total knee replacement (TKR)

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Abstract

The wear of Ultra-high Molecular Weight (UHMWPE) Polyethylene inserts, it continues affecting the longevity of the total knee replacement (TKR) together with the aseptic loosening, and both constitute the two main causes of failure [1]. Considering this, it is necessary to find appropriate solutions to avoid the excessive wear and until the rupture of the polyethylene elements. The main purpose of this work is develop a simple methodology for modeling and analyzing using Finite Element Method (FEM) of the contact zones into metallic femoral insert and UHMWPE tibial insert where values of stresses are greatest, according to normalized gait cycle. Results obtained are very similar compared with experimental tests [2] and 'in press' [3].

Original languageEnglish
Title of host publicationProceedings of 2013 Science and Information Conference, SAI 2013
Pages197-201
Number of pages5
StatePublished - 2013
Event2013 Science and Information Conference, SAI 2013 - London, United Kingdom
Duration: 7 Oct 20139 Oct 2013

Publication series

NameProceedings of 2013 Science and Information Conference, SAI 2013

Conference

Conference2013 Science and Information Conference, SAI 2013
Country/TerritoryUnited Kingdom
CityLondon
Period7/10/139/10/13

Keywords

  • contact stresses
  • finite element method (FEM)
  • numerical simulation
  • strain
  • stress
  • total knee Prosthesis

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