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Microelectrode study of stress-generated potentials obtained from uniform and nonuniform compression of human bone.

W Iannacone·E Korostoff·S R Pollack
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Abstract

By use of a previously developed microelectrode technique, the effect of nonuniform stresses on the stress-generated potentials (SGP) in bone were studied to a resolution of 5 micrometers. Comparison was made between uniformly and nonuniformly applied compression of human cortical bone. It was found that the radial electric fields for osteons in a specimen under uniform compression were equivalent, and such specimens possessed no macroscopic SGP; for nonuniform compression, the electric fields of osteons differed, and a macroscopic SGP was measured. The magnitude of the macroscopic SGP thus appears to be dependent upon local stress differences and, hence, on the SGP of local regions.

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Bone and BonesElectrophysiologyEvoked PotentialsHaversian SystemHumansMicroelectrodesStress, MechanicalComparative StudyJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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W Iannacone, E Korostoff, S R Pollack. 1979. Microelectrode study of stress-generated potentials obtained from uniform and nonuniform compression of human bone.. https://doi.org/10.1002/jbm.820130507

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