椎弓根基底部穿刺角度的测量和临床意义

The mensurement and clinical significance of transpedicular basilar part puncturing angles

目的:研究经皮椎弓根基底穿刺途径的影像学特点,探讨在影像监视下经椎弓根基底部穿刺的安全操作范围。方法:12具成人防腐(T_4～L_5)脊柱标本,螺旋CT扫描后测量经椎弓根基底穿刺角度、基底部大小。运用统计软件系统比较各参数的变化。结果:椎弓根基底夹角T_4～T_8逐渐减小,T_9～L_5逐渐增大。椎弓根基底大小T_4～L_5逐渐增大。左右两侧无显著性差异。男女间对比无显著性差异。结论:T_4～L_5行椎体成形术时,T_4～T_8可经椎弓根基底入路,T_9～L_3根据实际情况可选择经椎弓根或经椎弓根基底入路。L_4、L_5经椎弓根途径。

Objective：To explore the characteristic of percutaneous transpedicular basilar part puncture on dimensional images and its safe procedure under image guidance.Methods：12 human spines（T4-L5） were gathered from preservative cadavers.Com- puterized Tomography（CT）was used for scanning.In the transverse section of the pedicle,the angles and the width of the pedicle basilar part were measured and the statistical analyses were made.Results：The angles of the pedicle basilar part diminished from T4 to T8 and enlarged from T9 to L5.The width of the pedicle basilar part enlarged from T4-L5.There was no significant difference in these parameters between male and female groups or between left and right sides.Conclusion：Transpedicular basilar part approach could be used in T4 to Ts but transpedicular basilar part and trans-pedicular approach can be chosen in T9 to L3 and transpedicular could be used in T4-L5 when percutaneous vertrbroplasty is done in T4 to L5.