国际医药卫生导报2019，Vol.25Issue(3)：365-368,4.DOI:10.3760/cma.j.issn.1007-1245.2019.03.009
下颈椎单侧小关节脱位对颈椎稳定性影响的生物力学研究
Effect of unilateral cervical facet dislocation on stability of lower cervical spine
摘要
Abstract
Objective To assess the effect of unilateral cervical facet dislocation on stability of lower cervical spine measuring the range of motion (ROM) of the goat in the normal condition and after unilateral facet dislocation.Methods Six fresh specimens of goat cervical spine C3-7 were modeled as a normal group,a unilateral facet locked group,and a reduced group.The range of motion (ROM) in each group was measured under six directions of motion:flexion and extension,lateral bending,and axial rotation.Results After locking,the ROM were significantly lower than those in the normal group [(9.28±2.26)°vs.(11.93±4.31)°,(7.52± 1.97)°vs.(10.65±3.73)°,(8.17±2.15)°vs.(10.46±2.84)°,(12.93±3.64)°vs.(15.21±2.83)°,and (11.76±4.09)°vs.(15.47±3.19)°],with statistical differences (all P ＜ 0.05).After unlocking,rang of motion were significantly higher than those in the normal group [(15.68±3.35)°vs.(11.93±4.31)°,(14.97±3.07)°vs.(10.65±3.73)°,(14.86±3.24)°vs.(10.46±2.84)°,(13.65±2.96)°vs.(10.32±3.04)°,(23.53±5.81)°vs.(15.21±2.83)°,and (21.94±4.52)°vs.(15.47±3.19)°],with statistical differences (all P ＜ 0.05).Conclusions Lower cervical spine appears to be stable while the facet is locked unilaterally;however,the motion segment becomes overtly unstable after the facet dislocation is reduced;and surgery for fixation and fusion is the optimal treatment.关键词
颈椎/单侧小关节/脱位/稳定性/生物力学Key words
Cervical vertebrae/Unilateral cervical facet/Dislocation/Stability/Biomechanics引用本文复制引用
江晨,崔华,徐辉..下颈椎单侧小关节脱位对颈椎稳定性影响的生物力学研究[J].国际医药卫生导报,2019,25(3):365-368,4.基金项目
海门市科技计划项目(2017SF12)Project of Plan of Science and Technology in Haimen (2017SF12) （2017SF12）
