CT引导经皮腰椎间盘切吸术的临床研究

目的评价CT引导行经皮腰椎间盘切吸术（PLD）的价值。方法采用CT引导对168例腰椎间盘突出症患者行PLD。（1）于即时CT图像上选择最佳穿刺径路，测出穿刺深度、角度和穿刺点距离；（2）根据机架激光灯束在体表的投影，标出体表穿刺径路；（3）根据测定的穿刺参数进行穿刺；（4）经CT扫描证实穿刺针位置正确后，置换入工作套管，进行切吸术；（5）术毕再行CT扫描观察切吸范围，椎间盘还纳情况。结果显效88例，有效64例，无效16例。有效率90.47%。结论CT引导行PLD，定位准确，并发症少，是一种理想和值得推广的方法。

The Clinical Study onPercutaneous Lumbar Diskectomy(PLD)Under CT Guiding

Objective:To evaluate the value of PLD under CTguiding.Methods:Adopt PLD was performed in 168 penitents with lumbar disc herniation under CT guiding:(1)The best puncture path was choosed on the current video CT picture,the puncture depth,angle and the distance of puncture point were measured;(2)The puncture path was marked on patient′s body surface according to the laser ray projected into the body surface;(3)The puncture was carryed out according to the puncturing parameter;(4)The working casing pipe was replaced in and PLD was performed after the position of puncture needle was right verified by CT;(5)CT scan was done again after operation to observe the conditions of cutting area and intervertabral disc recovery.Results:88 cases were of prominent effective,64 cases were effective and 16 caese were ineffective with 90.47% effective rate totally.Conclusion:PLD under CT guiding is an ideal method,because it is of right postitioning and less complications.