寰枢的

But it can not expose atlanto-axial joint,can not direct see courser direction of screw with naked eyes.

但该术式无法暴露寰枢椎，肉眼不能直接观察到螺钉的走行方向，术前必须对螺钉的走行方向进行准确的定位，但是怎样进行定位目前国内只有陈坚报道过[5]，但缺乏系统的实验研究；国外未见相关报道。

All of them were diagnosed correctly,and were demonstrated well, which appeared as interrupted continuity of the bone,rotation of atlantoaxial joint,or widened of odontoid process anterior diastema.

寰枢椎损伤的多层螺旋CT扫描和三维重建，能更好显示骨折的情况，可作为上颈椎损伤临床诊断和治疗影像学的首选方法。

Methods: Injured patients of cervical spine was cayyied on X-ray inspection.,then according to the result of ADI and LADS ,next to CT or MRI inspection ,and that was to guide clinical diagonosis and treatment.To observe atlanto-dental interval (anterior arch of atlas posterior border to odontoid process anterior border) and odontoid process caster(included angle between axis of ordinate of odontoid process and axis of ordinate of odontoid vertebra) on the X-ray lateral projection.

对有颈部外伤史的病人常规行X线检查，然后根据寰齿间距和齿突侧块间隙的结果，行下一步CT检查或者MRI检查，指导临床治疗方法的选择。X线侧位片观察寰齿前间隙(为寰椎前弓后缘与齿突前缘距离)，齿状突后倾角(齿突纵轴与枢椎体纵轴的夹角)；开口正位片上测定齿突侧块间隙。

Method］Eighteen cases performed Vertex technique were included in this study. The early complications included vertebral artery injury (2 cases), logagnosia (1 case), anopsia(1 case), hematorrhea (1 case) and wrong instrumentation (1 case).

方法］对18例齿状突骨折伴寰枢椎脱位中的5例6项术中和术后早期发生的椎动脉损伤、失语、失明、大出血、置钉错误等并发症的原因进行分析，避免并发症的发生。

Results Of the 33 cases,29 cases had atlanto-axial injuries and 4 cases had isolated atlantoaxial dislocations.

回顾性分析33例寰枢椎损伤患者的影像资料，并进行对照分析，比较各项影像检查结果在诊断中的价值、局限性及在临床诊断中的作用。

The value,limitations and its clinical application of the different images were compared with each other. Results Of the 33 cases,29 cases had atlanto-axial injuries and 4 cases had isolated atlantoaxial dislocations.

回顾性分析33例寰枢椎损伤患者的影像资料，并进行对照分析，比较各项影像检查结果在诊断中的价值、局限性及在临床诊断中的功能。

The value,limitations and its clinical application of the different images were compared with each other. Results Of the 33 cases,29 cases had atlanto-axial injuries and 4 cases had isolated atlantoaxial dislocations.

回顾性分析33例寰枢椎损伤患者的影像资料，并进行对照分析，比较各项影像检查结果在诊断中的价值、局限性及在临床诊断中的作用。

Methods the angles from the body surface of yamen (gv 15) to the joint line between the level opposide atlas and axis, and the joint line between body surface of yamen point and posterior margin of the great occipital foramen, upper margin of arcus posterior atlantis were measured respectively in 1120 cases of t1 weighted image of median sigittal position with mri, and the data were processed by computer.

取1120例mri正中矢状位t1加权像，分别测量体表哑门穴至水平相对寰、枢椎椎间的连线与体表哑门穴至枕骨大孔后缘连线、寰椎后弓上缘连线所夹的角度，并由计算机进行数据处理。

Similarly, a axis FEM model was constructed to simulate the axis fracture, emphasized on the odontoid process. Three kind of odontoid process fracture were analysed on this model, which occurred respectively on the tip, the middle and the fundus. The results gave the best angle to fracture the odontoid process of the axis.

四、建立了枢椎的三维有限元模型，对枢椎齿状突骨折机理进行了理论上的研究，重点针对临床上齿突骨折的三种分类：1、齿突尖骨折：2、齿突腰部骨折：3、齿突基底部骨折，赋予齿状突在矢状面沿各种角度下受力条件，模拟寰椎前弓、寰椎横韧带以及C2-3棘间韧带对枢椎造成的暴力破坏，确定了最可能引起齿状突暴力骨折的受力角度。

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。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。