寰椎的

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 introduce the new methods of posterior approach for the atlantoaxial instability.

目的 介绍寰枢椎不稳的后路内固定治疗的新方法。

Objective: To summarize the three-dimensional diagnosis of atlantoaxial subluxation with X-ray photograph and to evaluate the therapeutic effects of acupotomy and spinal manipulation technique.

目的：研究与总结寰枢椎半脱位的X线片三维诊断和针刀松解、手法整脊的治疗效果。

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。

Objective To investigate the method and effect of the treatment of atlantoaxial fracture and dislocation.

目的 探讨应用Apofix椎板夹治疗寰枢椎骨折、脱位的方法及疗效。

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。

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。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。