Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-4-5
pubmed:abstractText
This study tested the hypothesis that the rate and the extent of bone formation adjacent to porous, coated Ti-6Al-4V implants are differentially affected by the type of bioactive ceramic coating. Forty-eight rabbits received cylindrical Ti-6Al-4V intramedullary distal femoral implants bilaterally. Implants for the right limbs were coated with 45S5 Bioglass (45S5). Implants used for the left limbs either were coated with tricalcium phosphate/hydroxyapatite (HA) or were left uncoated as controls (CTL). The 45S5-coated implants histologically and biomechanically were compared to HA-coated and CTL implants at 4, 8, 12, and 16 weeks. After 12 and 16 weeks of healing, more bone and thicker trabeculae were measured histomorphometrically within the implant pores for the 45S5-coated implants compared to the HA-coated and CTL implants (p < 0.05). With time the HA-coated and CTL groups exhibited a significant decline in percent of bone and of trabecular thickness (p < 0.05) while the 45S5-coated implants did not. Biomechanical analyses indicated similar shear strengths for all treatment groups. In summary, 45S5-coated implants exhibited greater bone ingrowth compared to HA-coated and CTL implants, and they maintained their mechanical integrity over time.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9304
pubmed:author
pubmed:copyrightInfo
Copyright 2001 John Wiley & Sons, Inc. J Biomed Mater Res 55: 603-612, 2001
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
603-12
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Differential healing response of bone adjacent to porous implants coated with hydroxyapatite and 45S5 bioactive glass.
pubmed:affiliation
Colorado State University, Department of Mechanical Engineering, Biomedical Engineering Program, A101 Engineering Building, Ft. Collins, Colorado 80523, USA. wheeler@engr.colostate.edu
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't