Linked Life Data

17312586

Source:http://linkedlifedata.com/resource/pubmed/id/17312586

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2007-2-21
pubmed:abstractText
Virtually all contemporary cementless femoral hip stems are designed with the goals of achieving immediate and long-term stability, restoring hip mechanics, and minimizing thigh pain. However, the incorporation of features specifically intended to minimize stress-mediated bone resorption (stress shielding) has been variable. Attempts to reduce bone loss through stem design have yielded inconsistent results and, in certain instances, early and catastrophic failure. Prior beliefs regarding the determinants of stress shielding were based upon the qualitative assessment of bone loss using plain radiographs. These are being challenged, particularly with regard to the role of porous coating level. This is in large part due to the refinement and widespread availability of dual-energy xray absorptiometry (DEXA), which allows quantitative assessment of bone mineral density both pre- and postoperatively. The available evidence indicates stem stiffness plays a dominant role. Progressive bone loss through stress shielding has potentially dire consequences. While such problems have not manifested as severe or widespread clinical issues, the preservation of femoral bone stock is an important and desirable goal.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0009-921X
pubmed:author
pubmed:issnType
Print
pubmed:volume
453
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
64-74
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
New femoral designs: do they influence stress shielding?
pubmed:affiliation
Ohio State University, Department of Orthopaedic Surgery and Grant Medical Center, Columbus, OH, USA. agump1@aol.com
pubmed:publicationType
Journal Article, Review