ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This study investigates micro-structural and mechanical properties of trabecular bone inhuman femoral head with and without osteoporosis using a micro-CT and a finite element model. 15cored trabecular bone specimens with 20 [removed info] of diameter were obtained from femoral heads withosteoporosis resected for total hip arthroplasty, and 5 specimens were removed from femoral head ofcadavers, which has no history of musculoskeletal diseases. A high-resolution micro-CT system wasused to scan each specimen to obtain histomorphometry indexes. Based on the micro-images, aFE-model was created to determine mechanical property indexes. While the non-osteoporosis grouphad increases the trabecular thickness, the bone volume, the bone volume fraction, the degree ofanisotropy and the trabecular number compared with those of osteoporotic group, thenon-osteoporotic group showed decreases in trabecular separation and structure model index.Regarding the mechanical property indexes, the reaction force and the Young's modulus were lowerin the osteoporotic group than in non-osteoporotic group. Our data shows salient deteriorations intrabecular micro-structural and mechanical properties in human femoral head with osteoporosis
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.321-323.1070.pdf
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