Linked Life Data

12095724

Source:http://linkedlifedata.com/resource/pubmed/id/12095724

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2002-7-3
pubmed:abstractText
An experimental study was performed on 20 cadaveric human proximal femurs to investigate both the reproducibility of their mechanical behavior under uniaxial compression and the correlation of mechanical properties with geometric dimensions and bone density. These variables were assessed by radiography, physical measurement, and dual-energy X-ray absorptiometry (DEXA). The specimens were immobilized, loaded to the point of fracture, and analyzed with the help of a materials testing machine. The fractures invariably showed a similar pattern both in location (i.e. at the femoral neck) and in nature (i.e. "axial-shear" type according to the AO classification system). The mechanical properties of the tested proximal femurs correlated negatively with age (r = -0.39) and positively with sex (male femurs were stronger and correlated more closely than female femurs, P = 0.005). They showed a strong positive correlation with head diameter (r = 0.713, P = 0.0004), a moderate positive correlation with both neck axis length (r = 0.63) and neck diameter (r = 0.502), and a slight positive correlation with femoral neck-shaft angle (r = 0.326). All DEXA-based densitometry measures turned out to be powerful predictors of fracture force. The establishment of this solidly reproducible fracture model based on standardized loading conditions should have implications for future research on osteopenia/osteoporosis and preventive stabilization techniques.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0020-1383
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
427-33
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Predictive geometric factors in a standardized model of femoral neck fracture. Experimental study of cadaveric human femurs.
pubmed:affiliation
Department of Traumatology, University of Vienna Medical School, Vienna, Austria. christian.kukla@krankenhaus-friesach.at
pubmed:publicationType
Journal Article