摘要
目的: 评价 3种颈椎椎弓根置钉方法。方法: 3组尸体各 9具, 行颈椎CT影像测量后分别用 3种方法进行椎弓根置钉, 其结果由CT验证。结果: 颈椎椎弓根三维定位器法置钉 90枚, 椎弓根内占 90%, 其中神经根损伤 2枚, 椎动脉损伤 1枚; Abumi法置钉 90枚, 椎弓根内占 55. 56%, 其中神经根损伤 19枚, 椎动脉损伤 4枚; Ebraheim法置钉 72枚, 椎弓根内占 29. 17%, 其中神经根损伤 24枚, 椎动脉损伤 29枚, 3种方法均无脊髓损伤。结论: 在术中不探查椎弓根、无影像设备导向条件下, 颈椎椎弓根三维定位器置钉准确率较Abumi手法置钉高, 而Ebraheim法不适用于国人。
Objective: To evaluate three insertion techniques of cervical pedicle screws.Method:Twenty seven adult cadavers were randomly divided into three groups,Cervical Pedicle Three Dimensional locator technique,Abumi technique and Ebraheim technique which included 9 samples respectively, the cadaveric cervical pedicles were placed with 2mm nails according to three techniques.Results of all samples were assessed by CT scan.Result:In group Cervical Pedicle Three Dimensional locator techniques, 90 cervical pedicles nails were placed,90% of the nails were placed entirely within the pedicle; 10% had a pedicle cortex breach,among them,the nerve root was injured by 2 nails,the vertebral artery was injured by 1 nail.In group Abumi techniques,90 cervical pedicles nails were placed, 55.56% of the nails were placed entirely within the pedicle;44.4% had a pedicle cortex breach, among them, the nerve root was injured by 19 nails, the vertebral artery was injured by 4 nails. In group Ebraheim techniques,72 cervical pedicles nails were placed, 29.17% of the nails were placed entirely within the pedicle; 70.83% had a pedicle cortex breach, among them, the nerve root was injured by 24 nails,the vertebral artery was injured by 29 nails.No spinal cord injury were found in all the three groups.Conclusion:Without guidance of roentgenography and exploration of pedicle,the Cervical Pedicle Three Dimensional locator technique can achieve a higher accurate rate of insertion manipulation, while in the same condition,Abumi techniques gives rise to relatively high failure rate of screw insertion.The Ebraheim techniques misfits Chinese.
出处
《中国矫形外科杂志》
CAS
CSCD
北大核心
2005年第1期47-50,共4页
Orthopedic Journal of China
关键词
颈椎
椎弓根
置钉法
对照
Cervical spine
Pedicle
Insertion techniques
Comparison
