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J Appl Biomech. 2012 Aug;28(4):387-93. Epub 2011 Nov 14.

Influence of shear stress on behaviors of piezoelectric voltages in bone.

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1
Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin, China.

Abstract

The piezoelectric properties of bone play an important role in the bone remodeling process and can be employed in clinical bone repair. In this study, the piezo-voltage of bone between two surfaces of a bone beam under bending deformation was measured using an ultra-high-input impedance bioamplifier. The influence of shear stress on the signs of piezo-voltages in bone was determined by comparing and contrasting the results from three-point and four-point bending experiments. From the three-point bending experiment, the study found that the signs of piezo-voltages depend only on shear stress and are not sensitive to the normal stress.

PMID:
22084058
[Indexed for MEDLINE]
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