[Objective]To explore the effect on spinal growth and devetopment at different month-age of immature rabbits with spinal fusion and fixation;and to explain the mechanism of crankshaft phenomenon after child scoliosis treatment.
[目的]观察不同月龄幼兔脊柱后路融合固定对脊柱生长发育的影响,以探讨幼儿脊柱侧弯后路内固定后,曲轴现象的发生机理以及骨骼成熟度与后路融合的关系。
Some following exact is appliced in close spool formation of image.
本文通过理论力学哈密顿原理和光学费马原理的对照得到光学拉格朗日函数,由拉格朗日函数和哈密顿量之间的关系推导出光学哈密顿方程,并通过具体的例子说明哈密顿方程在近轴成象中的应用。
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