【摘要】 目的研究雄性大鼠骨质疏松的骨生物力学特性。方法基于切除肾上腺雄性大鼠骨质疏松模型,研究其股骨生物力学指标。结果骨质疏松大鼠弯曲弹性模量、弯曲刚性系数及最大弯曲应力降低,弯曲韧性系数雄性大鼠升高。结论骨质疏松雄性大鼠骨质综合生物力学水平降低,骨质抗应力性能降低,骨质韧性损失慢于或小于抗应力性能。更多还原

【Abstract】 Objective To study the bone biomechanical characteristics of osteoporotic male rats.Methods The biomechanics indexes of the femur were researched based on the osteoporotic model of male rats after adrenalectomy.Results The modulus of bending elasticity,modulus of bending rigidity,and maximal bending stress of the osteoporotic rats decreased,however,the modulus of bending toughness of the male rats increased.Conclusions The comprehensive biomechanics of male osteoporotic rats decreased.The anti-stress power of the bone decreased.The change of bone toughness was slower or smaller than the anti-stress power of the bone.更多还原