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.
