腰椎

The establishment of models was simple and cost-effective, and the biocompatibility of bone tissues and implants, as well as the bone tissue ingrowth can be observed.

提示犬椎体模型设计合理、操作容易，费用低廉，可以就融合术后骨组织与内置入物的相容性及钛-骨界面上骨组织长入情况进行观察，是一种简单、方便的研究腰椎前路内固定手术的动物模型。

Somatosensory innervation of he lumbar spine and adjacent tissues.

他的躯体感觉神经支配和腰椎旁组织。

Objective To explore the clinical value of MRI in early diagnosis and treatment of lumbar intervertebral infection.

目的 探讨MRI对腰椎间隙感染的早期诊断和治疗的价值。

Methods The clinical data of 9 cases of intervertebral space infection after lumbar operation were collected and analyzed.

分析手术后腰椎间隙感染9例的临床资料及特点，保守治疗7例，再手术治疗2例。

Objective:To observe the therapeutic effect of portable tractor in patients with intervertebral disc protrusion.

目的 ：观察便携式腰椎牵引器在治疗腰椎间盘突出症中的应用。

Appraised the clinical effect of the flavone of rhizome drynania on Senile Osteoporosis, according to the dynamic observation on integrative scores of lumbodorsal pain and lumbodynia,"VAS section grading method" on lumbodynia,"Barthel index rating method" on ADL, detected BMD on anterior-posterior position lumbar2~4 vertebra body and proximate of femur including neck/ward/troch, and determined the index of bone transition including BGP/PINP/ICTP through the radioimmunity method before and after treated half a year, then contrast intragroup and selfgroup. Depending on the standard of curative effect, contrast the difference of curative effect between two groups.

采用随机对照的方法，分为治疗组36例，对照组34例，依据对腰背痛及腰痛综合评分进行动态观察；依据"疼痛VAS线段分级法"对腰背痛（静止痛、翻身痛、久坐痛、起身痛、弯腰痛、步行痛、睡眠痛、叩击痛、压痛）进行量化动态观察；依据"Barthel指数评定法"对老年性骨质疏松症日常生活活动能力进行观察；采用双能X线骨密度仪对腰椎(L2-L4)、股骨近端各部位：股骨颈、股骨三角区、股骨粗隆进行骨密度定量检测；应用放射免疫法对骨转换指标进行测定，骨形成指标：骨钙素、Ⅰ型前胶原氨基端前肽；骨吸收指标：Ⅰ型胶原交联羧基末端肽等，评价骨碎补总黄酮治疗老年性骨质疏松症的临床效果。

CT ; lumbar segment ; finite element model ; inverse engineering ; Mimics

CT ；腰椎节段；有限元模型；逆向工程； Mimics

Either of two large flat bones each forming one of the lateral halves of the pelvis and consisting of the fused ilium,ischium,and pubis.

髋骨构成骨盆侧向部分的两块大而平的骨骼，由合并的髋骨，坐骨和耻骨组成在腰椎下是五个椎骨融合在一起形成的骶骨。

As shown in the cycle-stiffness curve, the stiffness was significantly higher for Krag and caudad method than for Magerl method (P.01). Conclusion In osteoporotic lumbar vertebrae, the placement of pedicle screws should not paralled superior endplate and polyaxial pedicle screws should be chosen.

对于骨质疏松患者的腰椎后路椎弓根螺钉内固定手术，常用的螺钉平行上终板的技术不能提供最好的生物力学稳定性。

Methods Six cadaveric lumbar vertebrae were harvested and evaluated with dual-energy x-ray absorptiometry and quantitative computed tomography to assess bone mineral density. Matched, polyaxial pedicle screws were then randomly assigned by side and placed using the Magerl, Krag or caudad trajectory technique assisted by Iso-C 3D scan and 3D navigation system. Cyclic loading tests were performed with a maximum 250 N load at 3 Hz up to 30000 cycles while recording load and displacement. Stiffness quotients were calculated it comparison.

从尸体中获取6节腰椎椎体经DEXA和QCT检测骨密度值，证实为骨质疏松后在计算机导航下按随机分组的方法向12个椎弓根中置人不同方向的椎弓根螺钉，使用MTS-858生物力学仪脊柱力学测试平台进行±250N的循环负荷疲劳测试，记录负荷循环中的螺钉位移，计算系统的刚度系数并进行对比分析。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。