枢椎的

Objective: To study three-dimensional movement of four type of posterior atlantoaxial fixation techniques of type Ⅱ odontoid process fracture.

目的：对寰枢椎齿状突Ⅱ型骨折实验模型的4种后路内固定方式下的三维运动范围进行实验研究，为临床选择内固定方法提供生物力学依据。

Methods The ligamentous, nonlinear, three-dimensional finite element models of normal upper cervical spine (C0-C3) and type II odontoid fracture were developed and validated.

方法建立具有详细解剖结构的上颈椎(C0-C3)及寰枢椎不稳定的有限元模型并验证其有效性。

Objective To evaluate diagnostic value of spiral CT reconstruction in atlantoaxial injuries.

目的 探讨螺旋CT重建技术对寰枢椎损伤的诊断价值。

Objective: To design a new device of atlantoaxial reduction and the internal fixation and explore its applied feasibility.

目的：设计一种复位固定一体化的新型寰枢椎复位内固定器，并探讨其可行性。

Objective To evaluate the role of multi-slice spiral CT and three-dimensional reconstruction in detecting atlantoaxial injury.

目的 探讨多层螺旋CT扫描及三维重建技术在寰枢椎损伤中的价值。

ABSTRACT］ Objective To investigate the surgical efficacy through anterior loosening and posterior fusion for irreducible atlantoaxial dislocation.

目的 探讨难复性寰枢椎脱位经颈前路松解、后路融合的临床疗效。

Objective To investigate the surgical efficacy through anterior loosening and posterior fusion for irreducible atlantoaxial dislocation.

目的 探讨难复性寰枢椎脱位经颈前路松解、后路融合的临床疗效。

Spine specimens were fixed to the biomechanical elongation tester (Shimazu AGS-J, Japan) with the upper clipping at the vertebra dentata, T1 and T12 vertebra, the lower clipping at the superior part of thigh bone. Under the different states, keeping or removing psoas muscle, the extended stress (N/mm^2 )of different segments of spine at the flexed and extended positions of hip joint were measured respectively.

上端十字头分别夹枢椎、第1胸椎和第12胸椎，下端十字头夹股骨上部；分别作有腰大肌状态下和切断腰大肌状态下，股髋自屈曲位到过伸带动脊柱自屈曲位到过伸位拉伸试验，测定两种不同状态下脊柱各节段的伸展应力。

Methods. A 26-year-old man with Down syndrome suffered from retropharyngeal infection, after which his atlantoaxial subluxation was aggravated and myelopathy developed.

一26岁男性唐氏综合症患者，在咽后部感染后，继发日益严重的寰枢椎半脱位，并发生脊髓病。

Methods: 28 rabbits were divided into 3 groups (4 animals for every group). All animals were dissected to keep the spine and the pelvis, hip joint, the upper part of the femur, with the anterior and posterior longitudinal ligaments, intervertebral disk and psoas muscle, erector spinae, and supraspinal ligament attached to it.

取家兔12只，分3组，每组4只，解剖后保留枢椎以下完整之脊柱及骨盆、髋关节、上段股骨，不损伤脊柱前、后纵韧带、椎间盘及所附着之腰大肌，保留脊柱背侧的竖脊肌、棘上韧带，置于生物力学拉伸测试仪（日本岛津制作所产AGS-J系列）。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。