Linked Life Data

17689783

Source:http://linkedlifedata.com/resource/pubmed/id/17689783

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2007-8-10
pubmed:abstractText
gamma-Barrier packaging is shown to be effective in preventing oxidation of polyethylene during shelf storage and in addressing the problem of early fatigue failure seen in gamma-air-sterilized bearings with long shelf-storage before implantation. The series of gamma-barrier retrievals studied suggests that oxidation occurs in the body via the same mechanism as seen in gamma-air-sterilized bearings. A critical oxidation level is identified above which polyethylene bearings are susceptible to fatigue damage after sufficient cycles of use. Although critical oxidation was not reached in the majority of the retrieved gamma-barrier bearings studied, in vivo oxidation appears to follow an exponential increase with time. The result of in vivo oxidation is expected to be loss of mechanical properties, and susceptibility of polyethylene bearings to eventual fatigue failure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0883-5403
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
721-31
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
In vivo oxidation of gamma-barrier-sterilized ultra-high-molecular-weight polyethylene bearings.
pubmed:affiliation
Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire, USA.
pubmed:publicationType
Journal Article