Linked Life Data

14560414

Source:http://linkedlifedata.com/resource/pubmed/id/14560414

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7 Suppl 1
pubmed:dateCreated
2003-10-15
pubmed:abstractText
We tested the hypothesis that the mechanical and chemical behavior of gamma radiation-sterilized ultrahigh-molecular-weight polyethylene (UHMWPE) changes after implantation. Relationships between the mechanical behavior and oxidation index were explored in a cohort of 16 consecutive traceable Hexloc acetabular components (Biomet, Warsaw, IN) that were machined from extruded, stearate-containing UHMWPE and gamma sterilized in air. Shelf aging time (average, 0.4 years) and implantation time (average, 11.5 years) were determined for all 16 inserts. The retrieved liners exhibited significant mechanical degradation, which was most severe in the unloaded surface regions. Analysis of the Fourier transform infrared spectroscopy data revealed a significant association between the oxidation index and mechanical degradation of the UHMWPE. The results of this study strongly support the hypothesis that the degradation of mechanical properties for the liners occurred during implantation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0883-5403
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
68-78
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Degradation of mechanical properties of UHMWPE acetabular liners following long-term implantation.
pubmed:affiliation
Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.