CT导向椎间孔镜技术治疗腰椎间盘突出症术后MR评价

目的 探讨MRI检查对评价CT导向椎间孔镜技术（PTED）治疗腰椎间盘突出症术后疗效的应用价值.方法 回顾性分析接受PTED治疗腰椎间盘突出症175例患者MR图像.测量手术前及术后硬膜外压痕值、计算椎间隙高度率、对比手术前及术后椎间孔及侧隐窝狭窄发生率,相关数据进行统计学分析.结果 术前硬膜外压痕纵轴值（8.2±3.0）mm.术后6月硬膜外压痕纵轴值（2.0±2.7）mm,椎间盘还纳值（6.1±2.5）mm.术后12月硬膜外压痕纵轴值（1.7±3.2）mm,椎间盘还纳值（6.4±2.6）mm.术后椎间盘还纳值与日本骨科协会下腰痛评分标准（JOA评分）值呈正相关性.术前、术后椎间孔及侧隐窝狭窄发生率差异有显著性（P＜0.01）.术前、术后椎间隙高度率差异无显著性（P＞0.05）.结论 MRI检查能够有效评价PTED治疗椎间盘突出症临床疗效,具有重要指导价值.

Evaluation of MR imagining in percutaneous transforaminal endoscopic discectomy postoperative for lumbar disc herniation by CT guidance

Objective To explore the evaluation of MR imaging in percutaneous transforaminal endoscopic discectomy postoperative for lumbar disc herniation by CT guidance.Methods The MR images of 175 cases underwent PTED for lumbar disc prolapse were retrospective reviewed.Measuring the value of epidural creasing （pre-operation and post-operation）,and calculating the rate of intervertebral disc height,and comparing the incidence of intervertebral foramen and lateral recess stenosis （pre-operation and post-operation）,the data were analyzed using method of statistics.Results The value of epidural indentation indentation longitudinal axis was （8.2 ± 3.0） mm.The postoperative value （6 months） was （2.0±2.7） mm,the value of intervertebral disc retraction was （6.1±2.5） mm.The postoperative value （12 months） was （1.7±3.2） mm,the value of intervertebral disc retraction was （6.1±2.5） mm.The value of intervertebral disc retraction and JOA score has positive correlation.The rate of intervertebral foramen and lateral recess stenosis （pre-operation and post-operation） has significant difference （P ＜0.01）.The value of intervertebral disc height has no significant difference （P ＞0.05）.Conclusion MRI is of great value in evaluating the effect in percutaneous transforaminal endoscopic discectomy postoperative for lumbar disc herniation.