Bacon G E, Bacon P J, Griffiths R K
J Anat. 1984 Sep;139 ( Pt 2)(Pt 2):265-73.
The preferential orientation of the apatite crystals in the lower tibia, talus and calcaneus, as determined by neutron diffraction, serves as an indicator of the lines of stress in the foot. The main stress flows down from the tibia to the heel and the ball of the foot and there is noteworthy orientation along the line of the plantar aponeurosis which acts as a tie. Orientation is particularly marked above the point of attachment of the Achilles tendon, where the edge of the calcaneus functions as a beam. The centre of the talus serves as a junctional region for forces and is relatively unoriented.
通过中子衍射确定，胫骨下部、距骨和跟骨中磷灰石晶体的择优取向可作为足部应力线的指标。主要应力从胫骨向下流向足跟和脚掌球部，并且沿充当系带的足底腱膜线存在值得注意的取向。在跟腱附着点上方，取向尤为明显，此处跟骨边缘起到梁的作用。距骨中心作为力的交汇区域，相对无定向。
