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Fluid flow in bone in vitro

M W Johnson, D A Chakkalakal, R A Harper

    Journal of Biomechanics
    |January 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

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    The electromechanical effect in wet bone may not be piezoelectric, but rather a streaming potential driven by fluid flow. This fluid flow rapidly decays within milliseconds in bone

    Area of Science:

    • Biophysics
    • Biomaterials Science
    • Skeletal Biology

    Background:

    • Dielectric measurements indicate the electromechanical effect in fluid-saturated bone might not stem from piezoelectricity.
    • This suggests the effect is linked to streaming potentials dependent on fluid flow within stressed bone.

    Purpose of the Study:

    • To present a model for fluid flow in bone.
    • To analyze the implications of this model for understanding the electromechanical effect in wet bone.

    Main Methods:

    • Development of an in vitro model to simulate fluid flow in bone.
    • Analysis of fluid flow dynamics within Haversian systems.

    Main Results:

    • The model predicts a rapid decay of fluid flow, on the order of milliseconds or less, within Haversian systems.

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  • This rapid decay has significant implications for the interpretation of electromechanical effects.

    • Conclusions:

    • The electromechanical effect in wet bone is likely due to streaming potentials, not piezoelectricity.
    • The rapid decay of fluid flow challenges previous interpretations of the electromechanical effect in bone.