【摘要】 目的：通过应用自行研制的螺旋式椎体融合器经后路椎间植骨融合治疗腰椎不稳，以防止因植骨愈合不良而造成的手术失败。方法：１９９１年３月～１９９６年５月应用螺旋式椎体融合器植骨融合治疗腰椎不稳３３例。其中双侧椎弓断裂伴腰椎滑脱１４例，一侧椎弓断裂（无滑脱）伴腰椎间盘突出３例，退变性脊柱滑脱１６例。结果：经１～５年随访，本组病例全部骨性愈合，症状基本消失，无并发症发生。结论：本技术操作简便、骨愈合坚固、能早期下床活动、安全可靠，对保持脊柱长期稳定、巩固疗效有重要作用更多还原

【Abstract】 Objective: To prevent operative failure due to malunion of bone grafting, a spiral typed fusion device was designed for the treatment of lumbar instability through posterior intervertebral fusion. Methods: From March 1991 to May 1996, 33 cases of instability of the lumbar spine were treated with the device, of them, 14 were lumbar spondylolisthesis with disruption of bilateral vertebral arches, 3 were lumbar disc herniation with disruption of unilateral vertebral arch (without spondylolisthesis), and 16 were degenerative vertebral spondylolisthesis. Results: The duration of follow up was 1- 5 years. The rate of bony fusion was 100% . Symptoms and signs disappeared completely and no complication occured. Conclusion: The authors believed that this kind of technique was easy to manipulate, safe and reliable. It played an important role in maintaining the stability of vertebral column.更多还原