Document Detail


Implementation of strain rate as a bone remodeling stimulus.
MedLine Citation:
PMID:  8618386     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Strain rate is implemented as a stimulus for surface bone remodeling. Using idealized models for trabecular bone structures, the surface remodeling predictions using the strain rate as the stimulus are compared with the predictions using the peak strain magnitude as the stimulus. For a uniaxially loaded cruciform shape, the comparison shows that the two surface remodeling stimuli predict the same final shape under a periodic compressive load, but the two evolutionary paths to final shapes are different. Two biaxially loaded regular grid models of trabecular structure were considered, one a grid of square diamond shaped elements and the other a brick wall patterned grid. For both of these idealized trabecular structures, the comparison shows that the two surface remodeling stimuli predict the same final shape under a periodic compressive load, even from these distinctly different initial grid patterns, and the evolutionary paths to final shapes are quite different. In general the two stimuli do not predict the same remodeling and the conditions under which they do are derived. The models developed are also applied to the data from the animal experiments reported in Goldstein et al. (1991), and it is shown that the strain rate stimulus predicts bone remodeling similar to what was experimentally observed.
Authors:
G Luo; S C Cowin; A M Sadegh; Y P Arramon
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of biomechanical engineering     Volume:  117     ISSN:  0148-0731     ISO Abbreviation:  J Biomech Eng     Publication Date:  1995 Aug 
Date Detail:
Created Date:  1996-06-11     Completed Date:  1996-06-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7909584     Medline TA:  J Biomech Eng     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  329-38     Citation Subset:  IM; S    
Affiliation:
Department of Mechanical Engineering, School of Engineering, City College, New York, NY 10031, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Biomechanics
Bone Remodeling / physiology*
Humans
Models, Biological*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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