颈椎后部结构对颈脊柱运动稳定性影响的实验研究  

The Influence of the Posterior Vertebral Struc tures on the Stability of the Cervical Spine

作　　者：朱青安 钟世镇 卢万发 吴增晖 

机构地区：[1]第一军医大学全军医学生物力学实验室

出　　处：《中华骨科杂志》1995年第10期689-691,共3页Chinese Journal of Orthopaedics

基　　金：国家自然科学基金

摘　　要：在１５例新鲜颈椎标本上定量地研究了颈椎后部结构切除对其前屈、后伸和左、右侧弯运动的影响，包括与单开门术式相关的椎板及部分黄韧带、与颈椎神经根减压术有关的单侧或双侧小关节内侧半等结构。研究表明两侧椎板和部分黄韧带切除对颈椎运动无显著性影响，即颈椎单开门术不会造成颈椎的不稳；单侧小关节内侧半切除后颈椎运动无明显改变，但双侧小关节内侧半切除则会产生节段的失稳，其前屈、后伸和侧弯运动将分别增加３３％、７４％和４４％。说明小关节在颈椎活动中起重要作用。建议在双侧小关节内侧半切除后应植骨融合或器械内固定，以加强颈椎稳定性。AbstractThe effects of the posterior vertebral strctures on the movements of the cervical spine in flexion/ex-tension and right/left lateral bending was studied with fresh cervical spine specimens of 15 young cadavers。The posterior structures considered were those closely related with the expansive open-door laminoplasty and the unilateral or bilateral hemiresection of interfacet for decompression of the cervical nerve roots,The re-sults of this study indicated that:1.the range of mo-tion of the cervical spine was not changed significantly following the resection of bilateral laminae and related yellow ligaments or unilateral hemiresection of inter-facet;2.the motion of cervical spine increased signifi-cantly following bilateral hemiresection of interfacets,being 33%,74%and 44%in flexion,extension and lateral bending respectively.Therefore,in such cir-cumstances,an interspinal process fusion or an instru-mentation must be used to strengthen the stability of the cervieal spine.

关 键 词：后部结构 颈椎 稳定性 

分 类 号：R322.72[医药卫生—人体解剖和组织胚胎学] R318.01[医药卫生—基础医学]