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Mechanical implications of collagen fibre orientation in cortical bone of the equine radius

Riggs, C. M. ; Vaughan, L. C. ; Evans, G. P. ; Lanyon, L. E. ; Boyde, A. ;
  • 초록  

    Abstract Mechanical test specimens were prepared from the cranial and caudal cortices of radii from eight horses. These were subjected to destructive tests in either tension or compression. The ultimate stress, elastic modulus and energy absorbed to failure were calculated in either mode of loading. Analysis was performed on the specimens following mechanical testing to determine their density, mineral content, mineral density distribution and histological type. A novel technique was applied to sections from each specimen to quantify the predominant collagen fibre orientation of the bone near the plane of fracture. The collagen map for each bone studied was in agreement with the previously observed pattern of longitudinal orientation in the cranial cortex and more oblique to transverse collagen in the caudal cortex. Bone from the cranial cortex had a significantly higher ultimate tensile stress (UTS) than that from the caudal cortex (160 MPa vs 104 MPa; P P P P


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  • 주제어

    Collagen orientation .   Bone .   Stress .   Strain .   Adaptation.  

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