Objective: To review the research status in respect of interspinous distraction devices (IDD) in the treatment of degenerative lumbar spinal stenosis (DLSS).
Methods: Recent original articles related to IDD in the treatment of DLSS were retrieved extensively, and the effectiveness was analyzed and summarized.
Results: Its short-term effectiveness was superior to that of conservative treatment, no significant difference was found when compared with decompression or fusion alone. Its complication rate was higher than that of decompression or fusion alone, although complication dose not significantly affect treatment results, it still will increase the medical care cost of patients.
Conclusions: IDD is appropriate for patients who have failed to nonoperative treatment measures and can not tolerate open surgery, but the long-term effectiveness and durability of IDD need further research.
目的: 对棘突间撑开器（interspinous distraction devices，IDD）治疗退变性腰椎管狭窄症（degenerative lumbar spinal stenosis，DLSS）的研究现状作一综述。.
方法: 查阅近年国内外IDD治疗DLSS的相关文献，并进行分析总结。.
结果: IDD治疗DLSS的短期疗效优于保守治疗，与减压术或融合术无显著差异。IDD并发症发生率高，虽然并不显著影响手术疗效，但会提高患者医疗成本。.
结论: IDD为保守治疗无效而又不能耐受开放手术的DLSS患者提供了治疗选择，但其耐用性及长期疗效还需进一步研究观察。.
Keywords: Degenerative lumbar spinal stenosis; Dynamic stabilization; Interspinous distraction devices.