dc.contributor.author | Kelly, Nicola | |
dc.contributor.author | Cawley, DT | |
dc.contributor.author | Shannon, FJ | |
dc.contributor.author | McGarry, J. Patrick | |
dc.date.accessioned | 2013-11-11T18:30:32Z | |
dc.date.available | 2013-11-11T18:30:32Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Kelly N, Cawley DT, Shannon FJ, McGarry JP (2013) 'An investigation of the inelastic behaviour of trabecular bone during the press-fit implantation of a tibial component in total knee arthroplasty'. Medical Engineering & Physics. | en_US |
dc.identifier.uri | http://hdl.handle.net/10379/3806 | |
dc.description.abstract | The stress distribution and plastic deformation of peri-prosthetic trabecular bone during press-fit tibial component implantation in total knee arthroplasty is investigated using experimental and finite element techniques. It is revealed that the computed stress distribution, implantation force and plastic deformation in the trabecular bone is highly dependent on the plasticity formulation implemented. By incorporating pressure dependent yielding using a crushable foam plasticity formulation to simulate the trabecular bone during implantation, highly localised stress concentrations and plastic deformation are computed at the bone-implant interface. If the pressure dependent yield is neglected using a traditional von Mises plasticity formulation, a significantly different stress distribution and implantation force is computed in the peri-prosthetic trabecular bone. The results of the study highlight the importance of: (i) simulating the insertion process of press-fit stem implantation; (ii) implementing a pressure dependent plasticity formulation, such as the crushable foam plasticity formulation, for the trabecular bone; (iii) incorporating friction at the implant-bone interface during stem insertion. Simulation of the press-fit implantation process with an appropriate pressure dependent plasticity formulation should be implemented in the design and assessment of arthroplasty prostheses. | en_US |
dc.format | application/pdf | en_US |
dc.language.iso | en | en_US |
dc.publisher | Institute of Physics and Engineering in Medicine by Elsevier Ltd. | en_US |
dc.relation.ispartof | Medical Engineering And Physics | en |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | Total knee arthroplasty | en_US |
dc.subject | Press-fit implantation | en_US |
dc.subject | Finite element analysis | en_US |
dc.subject | Trabecular bone plasticity | en_US |
dc.subject | Polyurethane foam | en_US |
dc.subject | Pressure dependent yielding | en_US |
dc.title | An investigation of the inelastic behaviour of trabecular bone during the press-fit implantation of a tibial component in total knee arthroplasty | en_US |
dc.type | Article | en_US |
dc.date.updated | 2013-09-18T14:19:24Z | |
dc.identifier.doi | http://dx.doi.org/10.1016/j.medengphy.2013.05.007 | |
dc.local.publishedsource | http://dx.doi.org/10.1016/j.medengphy.2013.05.007 | en_US |
dc.local.publisherstatement | NOTICE: this is the author's version of a work that was accepted for publication in Medical Engineering & Physics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Medical Engineering & Physics, Volume 35, Issue 11, November 2013, Pages 1599¿1606 http://dx.doi.org/10.1016/j.medengphy.2013.05.007 | en_US |
dc.description.peer-reviewed | peer-reviewed | |
dc.contributor.funder | |~|Other|~| | |
dc.internal.rssid | 5029096 | |
dc.local.contact | Nicola Kelly, Biomedical Engineering, College Of Engineering, & Informatics, Nui Galway. Email: nicola.kelly@nuigalway.ie | |
dc.local.copyrightchecked | No | |
dc.local.version | ACCEPTED | |
nui.item.downloads | 936 | |