脊柱的

BACKGROUND: Some scholars have used finite element analysis to simulate spinal biodynamics. But there are few reports on finite element imitation of lumbar biodynamics system before and after artificial disc replacement.

背景：国内外已有学者将有限元分析用于脊柱的生物力学模拟，但对人工椎间盘置换前后腰椎生物力学系统的有限元模拟报道较少。

The method of thoracolumbar metastasis tumor treated with behind midmost and lateral anterior "T" resection and reconstruction of spine three columniation stability effectively to improve the quality of patient's life and prolong the living time.

胸腰椎转移瘤经后正中加后外侧"T"型切口手术切除并重建脊柱的三柱稳定性结构，提高了患者的生活质量并延长其生存时间。

A sagittal and/or coronal iew of the entire fetal spine should be obtained in each case.

在每一例检查中，胎儿脊柱的矢状面和冠状面应该都要看的。

Element connect with each other by notes,and force are transfer through notes,the unknown of inner point of element can calculate by formulator .

因为脊柱的几何结构复杂，单纯的有限元软件在模拟椎体外形效果不是很理想，采用Unigraphics V17。

Methods Seven cadaveric thoracolumbar spinal specimens were harvested to imitate thoracolumbar fracture according to Panjabi method. Biomechanical tests of stability were performed by measuring spinal strength, stiffness, torsional rigidity and load-to-failure after 5 different instruments were placed respectively.

用7具人尸胸腰段标本，按Panjabi方法制作骨折模型，分别安放5种固定器，利用生物力学的电测实验应力分析方法测试固定后脊柱的强度、刚度、扭转强刚度和极限强度。

Finally, and most difficult, namely, the transfer of lung cancer have occurred in the spine.

最后，也是最棘手的，即肺癌已发生脊柱的转移。

Proe growth of the spine and growth of the thorax are directly related.

目标。 证明脊柱的生长与胸廓的生长直接相关。

Other common hernias are hiatal hernia (protrusion of part or all of the stomach above the diaphragm ) and herniated disk (protrusion of tissue from a disk in the vertebral column through its outer layer).

其它一般的疝有食道裂孔疝(部分或全部的胃突入横膈膜上方)和椎间盘突出症(组织从脊柱的盘中脱出外层)。

With a large flattened bony-plated head with hornlike spines.

有大的扁平头和角状脊柱的淡水锯鱼。

On the basis of vertebral pedicle screw fixation, using intervertebral bone grafting could increase the rate of fusion, and using isthmic and posterolateral bone grafting could add spine stability, with good efficacy.

在椎弓根钉内固定系统复位固定的基础上进行椎间植骨椎等制定间融合率高，峡部植骨及后外侧植骨融合后可增加脊柱的稳定性，疗效好，值得临床推广。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。