摘要目的：比较双侧开窗减压与全椎板切除内固定治疗老年退变性椎管狭窄的临床效果。方法选取2013年3月至2015年1月老年退行性腰椎管狭窄症患者64例，随机分为两组，每组32例。观察组采用双侧开窗减压内固定术，对照组采用全椎板切除减压联合脊柱内固定术，对比观察两组治疗效果，及术后1年椎管直径变化。结果观察组总有效率为93.75％（30/32），对照组为90.63％（29/32），两组比较差异未见统计学意义（P ﹥0.05）。术后1年，观察组椎管直径为（15.7±2.6）mm，对照组为（11.4±2.0）mm，两组比较差异有统计学意义（P ﹤0.05）。结论双侧开窗减压内固定术治疗老年退行性腰椎管狭窄能有效改善患者椎管狭窄症状，可临床推广应用。

abstractsObjective To compare the efficacy of bilateral decompression and laminectomy in-ternal fixation on senile degenerative lumbar spinal stenosis. Methods From March 2013 to June 2015, 64 elderly patients with degenerative lumbar spinal stenosis were selected,and were randomly divided in-to two groups,with 32 cases in each group. The observation group was given bilateral decompression and internal fixation,while the control group was treated with laminectomy decompression and internal fixation of spine. The therapeutic effect,changes of spinal canal diameter one year after operation between the two groups were compared and observed. Results The total effective rate of the observation group was 93. 75%(30 / 32),and that of the control group was 90. 63%(29 / 32),the difference between the two groups was not significant(P ﹥ 0. 05). One year after operation,the neurocanal diameter of the observa-tion group was(15. 7 ± 2. 6)mm,and that of the control group was(11. 4 ± 2. 0)mm,the difference between the two groups was significant(P ﹤ 0. 05). Conclusions Bilateral decompression and internal fixation in treatment of senile degenerative lumbar spinal stenosis,can improve the symptoms of patients with spinal stenosis,and is worthy of promotion.