后外侧颗粒夹心植骨治疗退变性腰椎不稳症44例疗效观察

Outcomes of treating unstable degeneratie lumbar disease with posterolateval particle bone grafting in 44 cases

目的探讨经椎弓根螺钉系统固定加后外侧颗粒夹心植骨治疗退变性腰椎不稳症的临床疗效。方法 44例退变性腰椎不稳症患者。采用后路椎弓根螺钉系统固定,后外侧颗粒夹心植骨。按照0～9分法评估临床疗效,应用X线片结合随访和体检了解植骨融合情况。结果获得2年以上随访,优良率84.1%,植骨融合率86.6%。无术后继发椎管狭窄病例。结论在椎弓根螺钉系统内固定的基础上,采用后外侧颗粒夹心植骨治疗退变性腰椎不稳症操作简单,效果满意。

Objective To summarize the outcomes of treating unstable degeneratie lumbar disease with posterolateval particle bone grafting.Methods Fourty-four patients（19 males,25 fameles） with unstable degeneratie lumbar disease were treated with internal fixation combined posterolateval particle bone grafting.According to the 0-9 points,clinical outcomes and bone fusion were evaluated by physical and X-ray examinations.Results The follow up time was more than two years.Excellent-good rate was 84.1% and bone fusion rate was 86.6%.No case with secondary postoperative stenosis was seen.Conclusion On the bases of internal fixation with pedicle screw instrumeutation,posterolateral granular layer bone grafting is a simple and effective method to treat unstable degeneratie lumbar disease.