Stress distribution in the scapula studied by neutron diffraction

Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character
G E BaconR K Griffiths

Abstract

High intensity neutron beams provide a method of measuring the preferred orientation of apatite crystals in bulk samples of bone. Measurements at seven different sites on the scapula show that the c axes of the crystals lie preferentially along the directions of pull of the attached muscles. The highest orientation is found at positions under the influence of only a single group of muscles, such as M. teres major or M. infraspinatus. In intermediate regions a multiple distribution of crystals is found, able to withstand stresses in more than one direction. The technique provides a method of assessing the distribution of stress in bones.

References

Nov 17, 2007·Journal of Structural Biology·S R StockJ D Almer
Jan 1, 1980·Journal of Biomechanics·G E BaconR K Griffiths
Sep 27, 2005·Journal of Structural Biology·J D Almer, S R Stock
Jun 22, 1990·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·G E Bacon

Related Concepts

Infraspinatous Muscle Structure
Crystal - Body Material
Stress, Mechanical
Structure of Teres Major Muscle
Entire Infraspinatus
Neutron Diffraction
Bone Structure of Scapula
Apatites
Site
Muscle

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