刺突截骨椎管成形术治疗退行性腰椎管狭窄症

目的：介绍刺突截骨椎管成形术及其应用，方法：采用该术式治疗37例退行性腰椎管狭窄症患者，术后进行疗效评分（Oswestry问卷）和腰椎管直径测量。方法：术后1年腰腿痛平均改善76％，术后4年平均改善74％，疗效下降不显著（P＞0．05）。术后CT显示腰椎管直径平均增加20％，刺突原位愈合率87％。结论：该术式操作简单，神经减压充分，手术并发症少，其治疗退行性腰椎管狭窄症术手近、中期疗效和影像学评估均满意。

Spinous process osteotomies and canaloplasty for degenerative lumbar stenosis

Objective To describe spinous process osteotomies and canaloplasty for degenerative lumbar spinal stenosis. Methods The procedure was performed in 37 patients suffered from degenerative lumbar spinal stenosis. The outcomes were analyzed with Oswestry questionnaire and postoperative CT scanning. Results The functional improvement was 76% one year after surgery and 74% two years after surgery. The spinal canal was enlarged by 20% in postoperative CT scanning. 87% of osteotomized spinous processes had bony fusion with retain lamina bridge. Conclusion The technique affords easy performing, seldom complications, excellent decompression, satisfactory clinical and radiological outcomes for degenerative lumbar stenosis.