Linked Life Data

15307156

Source:http://linkedlifedata.com/resource/pubmed/id/15307156

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-8-12
pubmed:abstractText
The biphasic wear performance (run-in; steady-state phase) of 28-mm alumina-alumina hip implants was studied by hip simulator methods using bovine serum as the lubricant. The Biolox implants were run to 5.7 million cycles and Bioceram implants to 14.4 million cycles (Mc). Wear with all-alumina total hip replacements (THR) first showed a high wear rate of the order 1.2 mm3/Mc, lasting approximately 0.17 Mc. Overall to 0.7 Mc, the run-in phase appeared curvilinear but could be described by a linear phase averaging 0.3 mm3/Mc. From 0.7 to 1 Mc duration, the wear trend transitioned into a steady-state phase. Wear rates from 1 to 14 Mc were of the order 0.02 mm3/Mc. Surface contamination from the serum lubricant resulted in cyclic weight fluctuations of the order 0.2 mg. The transition from average run-in to steady-state phase represented a wear reduction of 13-fold. Comparing the steady-state wear value to that in standard 28-mm UHMWPE CUPS approaching 75 mm3/year, there was clearly a three-orders-of-magnitude wear superiority in favor of ceramic cups.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1549-3296
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
523-32
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Alumina hip joints characterized by run-in wear and steady-state wear to 14 million cycles in hip-simulator model.
pubmed:affiliation
H. Oonishi Memorial Joint Replacement Institute, Tominaga Hospital, 4-48, 1-Chome, Minato-Machi, Naniwa-Ku, Osaka 556-0017, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't