【作者】 刘铁龙；

【导师】 李家顺； 贾连顺；

【作者基本信息】 第二军医大学 ， 外科学， 2006， 博士

【摘要】 结合国人颈椎管及脊髓的解剖、影像学特点，设计一种新型双向锁定式钛缆内固定系统。实验采用6具新鲜颈椎尸体标本(C0-C3)，应用脊柱万能生物力学测试仪测试比较了脊柱外科领域所应用的钢丝和各种钛缆内固定系统的机械力学和生物力学特性，测试了不同锁紧力量和不同操作方法的固定效果，为临床应用线缆系统行内固定手术提供有用信息。结果显示新型双向锁定式钛缆内固定系统具有与进口钛缆相似或更加优良的生物力学和机械力学性能。所有钛缆内固定系统双侧同时锁定的效果要好于单侧轮流锁定的效果。经测试休息后再次固定的效果好于初次固定。同时新型双向锁定式钛缆内固定系统使手术更安全，操作更简便。更多还原

【Abstract】 To design a new type of double locking titanium cable internal fixation system in accordance with the anatomic and MRI features of the cervical spinal canal and spinal cord of the Chinese people. In this experiment, six specimens of the atlantoaxial complex (C0-C3) are used. We compare the mechanical properties and biomechanical performances of various wire and cable fixation devices currently used in the spine surgery on the wd-5 mechanics experimental machine, and compare the effects of various fastening strengths and locking methods on the stability of the specimens, thus provide information that will assist in selecting different cables for different clinical applications. The biomechanical characteristics and mechanical properties of the new type double locking titanium cable fixation system were superior or similar to the traditional Songer or Axis titanium cable. Fastening the cable in both sides at the same time will result better effect of fixation than fastening both cable in turn. The effects of fixation will be better if we fasten the specimen again after the fastened unstable specimens having a rest. On the same time, the new type double locking titanium cable fixation system was safer and easier to place.更多还原