[摘要] 目的 分析椎弓根螺钉弹性棒动态固定治疗腰椎间盘突出症（LDH）对邻近节段退变的影响。方法 选取2016年3月～2018年4月我院收治的120例LDH患者，简单随机化分组，各60例，对照组采用腰椎经椎弓根螺钉系统内固定手术，观察组采用椎弓根螺钉弹性棒动态固定术，比较两组下腰痛JOA评分系统评分、Oswestry功能障碍指数（ODI）、手术节段、上位节段、下位节段椎间高度、屈伸角度与髓核MRI T1值。结果 观察组术后6个月JOA评分高于对照组（P＜0.05）；观察组术后6个月ODI指数低于对照组（P＜0.05）；观察组术后6个月手术节段椎间高度大于对照组，手术节段屈伸角度小于对照组（P＜0.05）；观察组术后6个月手术节段髓核MRI T1值高于对照组（P＜0.05）。结论 椎弓根螺钉弹性棒动态固定治疗LDH，能保存部分椎间活动，有效维持椎间高度，改善患者临床症状与腰椎功能，近期不会导致临近节段异常活动及退变加速，可能有利于髓核修复。

[Abstract] Objective: To analyze the effect of dynamic fixation of pedicle screw elastic rod in the treatment of lumbar disc herniation (LDH) on adjacent segment degeneration. Methods: From March 2016 to April 2018, 120 patients with LDH admitted to our hospital were randomly divided into 60 cases each. The control group was treated with lumbar pedicle screw system internal fixation, and the observation group was treated with pedicle screw elastic rod dynamic fixation. The low-lying JOA scoring system score, Oswestry dysfunction index (ODI), surgical segment, superior segment, lower segmental intervertebral height, flexion and extension angle and nucleus pulposus MRI T1 values were compared between the two group. Results: The JOA score of the observation group was higher than that of the control group at 6 months after operation (P<0.05). The ODI index of the observation group was lower than that of the control group at 6 months after operation (P<0.05). The intervertebral height was higher than that of the control group (P<0.05). Conclusion: The vertebral screw elastic rod dynamic fixation for the treatment of LDH can preserve part of the intervertebral activity, effectively maintain the intervertebral height, improve the clinical symptoms and lumbar function of the patient, and will not cause the adjacent segmental abnormal activity and degeneration to accelerate in the near future, which may be beneficial to Nucleus repair.