颈椎

Objective: To measure linear and angular parameters of the posterior structure of the lower cervical spine.

目的：测量国人下颈椎后结构的相关径线及角度，为颈椎后路内固定手术的设计及施行提供参考数据。

It also demostrate that rotation manipulation can enhance the stability of cervical spine.

手法可提高颈椎的稳定性，但临床上颈椎手法操作的力度要恰当。

Objective: To establish the optimal height of the strut-graft for clinical surgery, this study analyzed the effect of change in strut-graft height on the lordotic curvatures and immediate biomechanical stability of the cervical spine on which corpectomy and strut-graft reconstruction with different height was performed.

目的：研究中下颈椎前路单椎体次全切除减压后不同撑开高度支撑植骨对颈椎曲度和颈椎即刻运动稳定性的影响，为临床手术确定合适的植骨高度提供参考。

Within 6 months, all 40 patients with cervical plates had fusions, and the cervical lordotic alignment was increased (2.51±6.75), and without plates and bolt loose or break. Of the 30 patients without plates the cervical lordotic alignment were decreased (1.33±3.43)(P.01), 2 patients had not fusions within 6 months (the fusion rate was 93.3%).

植骨融合率和颈椎生理曲度：植骨加钛板内固定组术后6个月内植骨融合率100%，颈椎生理曲度维持良好，较术前增加(2.51±6.75)°，无钢板和螺钉松动或断裂；单纯植骨组术后6个月内植骨融合率93.3%，颈椎生理曲度较术前减少(1.33±343)°，两组比较差异有显著比(P.01)， 2例术后3个月假关节形成。

Strut-graft with an appropriate distraction after corpectomy plays an important role not only in regain and maintain the cervical spine lordotic curvatures but also in acquire the global immediate stability of the cervical spine. After single vertebra corpectomy, the proper range of distraction between the superior and inferior vertebra maybe among 4-6 millimeters.

中下颈椎单椎体次全切除减压后，适当高度的撑开植骨对恢复和维持颈椎曲度以及手术节段的即刻稳定性有重要作用，中下颈椎单椎体次全切除减压后支撑植骨的高度应该是在手术椎体的上位和下位椎体间高度的基础上再撑开4～6mm左右。

Abstract］ Objective To explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.Methods Fourteen adult cadaver specimens of cervical spine（C3～C7）with intact structures including ligaments and perivertebral muscles were reserved and used.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性方法随机取14具福尔马林浸泡的成人颈椎标本（C3～C7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。

Methods 72 mimic cervical radiculitis Wistar rats were divided into 4 groups randomly:moderate dose group of JZ-I,high dose group of JZ-I,Jingfukang group and control group.JZ-I of moderate dose,JZ-I of high dose,Jingfukang and water were given to the rats seperately.PGE2 was determinated by radioimmunoassay at 3,7,14 days after animal models had been made.

将72只模拟颈神经根炎Wistar大鼠随机分为四组：颈椎Ⅰ号中剂量组、颈椎Ⅰ号高剂量组、颈复康组及空白对照组，分别给予颈椎Ⅰ号中剂量、高剂量、颈复康及凉开水，于造模后3天、7天、14天，取血浆进行PGE2含量的放射免疫测定。

At present, there are no cervical spine models suited to the character of the Chinese on the injury mechanism of the cervical spine. CT technology was used to get the data of the vertebras, which were obtained from Chinese 50th percentile volunteer's cervical spine, and a finite element model of the cervical spine was established.

针对目前在颈部损伤机理的研究中尚未有适合中国人体型特点的全颈椎有限元模型的情况，采用CT技术获取中国50百分位人体颈椎数据，并以此建立了全颈椎有限元模型。

This study is using LS-DYNA3D explicit finite element software to investigate that the head-cervical spine model with/without the helmet model, impact to the plane of ±15° angel in 3.2m/s, and to observe the cervical spine and head kinematics, to analyze the stress of vertebras and disc.

本研究应用LS-DYNA3D显式有限元素软体，使用完整的头-颈椎模型分成有无佩带安全帽部分，以初速3.2m/s模拟撞击角±15°时，颈椎的动态反应，观察颈椎与头部的运动，分析椎体与椎间盘的应值。

An electrophysiologic study on sEMG of trunk rotaory muscles in stroke patients;2. The characteristics of the skeletons of the trunk in bactrian camel are the following.

双峰驼躯干骨的特征如下：寰椎的背腹侧嵴都不明显，有外侧孔、翼孔、横突孔；枢椎较长；第3，4和5颈椎的横突前支比后支长；第6颈椎有不太典型的横突中支；第7颈椎横突不分支。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了