Influence of Shear Stress on Behaviors of Piezoelectric Voltages in Bone

• Autores: Donghui Fu, Lianyun Xu, Yanjun Zeng, Zhende Hou, Qing-Hua Qin
• Localización: Journal of applied biomechanics, ISSN-e 1543-2688, ISSN 1065-8483, Vol. 28, Nº. 4, 2012, págs. 387-393
• Idioma: inglés
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• Resumen

  • 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.