Linked Life Data

18756685

Source:http://linkedlifedata.com/resource/pubmed/id/18756685

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2008-9-1
pubmed:abstractText
In this paper fixed- and mobile-bearing implants were simulated using a multibody dynamic model and a finite element model to investigate the contact pressure distribution in the ultra high molecular weight polyethylene tibial bearing component. The thickness of polyethylene varied from 6.8 to 12.3 mm and the polyethylene was modelled as a non-linear material. It was found that the contact pressure on the polyethylene decreased in the fixed-bearing implant when the thickness of polyethylene increased from 6.8 to 8 and 9.6 mm, but there was little further decrease in pressure with the increase of polyethylene thickness from 9.6 to 11.0 and 12.3 mm. In the mobile-bearing implant, no increase in contact pressure on the superior surface was found with the increase in the thickness of the polyethylene; however, the contact pressures on the inferior contact surface of the thicker designs were higher than those in the 6.8 mm design. The numerical results obtained in this paper are in good agreement with published experimental test results. Moreover, the paper presents a detailed pressure distribution on the tibial bearing component during a full gait cycle.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0954-4119
pubmed:author
pubmed:issnType
Print
pubmed:volume
222
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
657-67
pubmed:dateRevised
2009-6-8
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
The effect of polyethylene thickness in fixed- and mobile-bearing total knee replacements.
pubmed:affiliation
Department of Engineering and Technology, University of Wolverhampton, Telford, Shropshire, UK. j.f.shi@wlv.ac.uk
pubmed:publicationType
Journal Article, Evaluation Studies