上颈椎韧带对寰枢椎稳定性影响的生物力学研究  

A biomechanical study on the effect of the craniovertebral junction area ligaments on atlantoaxial stability

作　　者：韩应超[1] 潘杰[1] 王善金[1] 杨明杰[1] 麻斌[1] 李立钧[1] 王强[2] 张东升[2] 谭军[1] 

机构地区：[1]同济大学附属东方医院脊柱外科,上海200120 [2]上海大学,200120

出　　处：《中华骨科杂志》2013年第6期628-634,共7页Chinese Journal of Orthopaedics

基　　金：国家自然科学基金（81171700）

摘　　要：目的探讨上颈椎韧带结构中横向韧带（横韧带）及纵向韧带对维持寰枢椎稳定性的作用。方法新鲜成人完整上颈椎标本6具，在生物力学试验机上按序测定完整标本、横韧带切断、横韧带＋纵向韧带切断状态下寰枢椎的前屈／后伸、左／右侧屈、轴向旋转幅度及前屈时的寰齿前间隙（atlanto-dentalinterval，ADI）。结果（1）横韧带切断后，载荷10N时平均ADI值、前屈、后伸角度与完整标本比较差异有统计学意义；载荷30-90N时两组差异无统计学意义；载荷100N时ADI值2．90mm、前屈12．53°、后伸13．89°，载荷150N时ADI值3．37mm、前屈16．07°、后伸16．39°，与完整标本比较差异有统计学意义。Objective To investigate the role of transverse and longitudinal ligaments of the cran- iovertebral junction area in maintaining atlantoaxial stability. Methods Six human cadaveric cervical spines with the occipital attached （C0-C3） specimens were harvested. Specimens were tested in the following se- quence： the intact specimens （Intact group）, the resection of transverse ligaments （TAL group）, and the resec- tion of longitudinal ligaments based on TAL group （TAL＋LL group）. Results 1） At the loading of 10 N, the average of ADI, flexion, and extension were 1.34 mm, 5.65° and 6.97° respectively, significant difference was found between the intact group and the TAL group. No significant difference was found between the two groups under the physiological loading （30-90 N）. At the loading of 100 N and 150 N, the average of ADI, flexion and extension were 2.90 mm, 12.53°, 13.89° and 3.37 mm, 16.07°, 16.39° respectively.

关 键 词：寰枢关节 生物力学 韧带 

分 类 号：R687.3[医药卫生—骨科学]