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[目的]评价腰椎后路椎体间融合(posterior lumbar interbody fusion,PLIF)术中应用双Cage和局部自体附件骨的融合率及术后5年的临床疗效.[方法]回顾接受PLIF手术、椎体间植入双Cage与局部附件骨、并行椎弓根钉内固定的84例患者的住院病历,并通过随访获得患者术前、术后1年、3年、5年的影像学资料,了解病人的康复情况,并用Oswestry功能障碍指数(Oswestry disability index,ODI)进行评分,观察椎体融合情况、相邻椎间隙退变情况(adjacent segment degeneration,ASD).[结果]单间隙固定、二间隙固定、三间隙固定的患者术后1年、5年ODI评分比术前均有显著性降低(P0.05).术后1年融合率均为94.95%,术后3年融合率均为100%.术后5年部分患者遗留腰部发困、发僵、下坠感等腰痛不适症状,发生率22.61%(19/84),尚不能认为单间隙固定、二间隙固定、三间隙固定腰部不适发生率有差别.术后5年相邻椎间隙退变发生率19.04%(16/84).具有相应症状、体征伴有ODI评分增加的ASD发生率2.38%(2/84).[结论]PLIF应用双Cage结合自体局部附件骨植入、椎弓根内同定治疗下腰椎疾病椎体融合率高,术后1年、术后5年ODI评价临床疗效好.部分病人术后遗留有腰部不适.术后5年ASD多是影像学上的变化,极少产生临床症状.“,”[Objective]To evaluate the 5 year follow - up result of posterior lumbar interbody fusion (PLIF) using autngenons bone and double cage.[Methods]Totally 84 cases received PLIF surgery. Hospitalized records and X - ray findings at 1,3, 5 years post - operation were collected and Oswestry disability index (ODI) was evaluated to observe the fusion effect and adjacent segment degeneration (ASD) .[Results]The difference was significant between preoperative ODI and 1 year postoperative ODI (P<0.01), and between preoperative ODI and 5 year postoperative ODI ( P < 0. 01 ) . The difference was not significant between 1 year and 5 year postoperative ODI. One year and 3 year postoperative fusion rate were 94. 95% and 100% re-spectively. The rates of lumbar discomfort and ASD were 22. 61% (19/84) and 19. 04 (16/84) respectively at 5 year postoperatively. No evidence was found about difference of lumbar discomfort among 1, 2, and 3 intervertebral spaces fusions.[Conclusion]PLIF using autogenous bone and double cage as fusion materials is an effective method for lumbar diseases. The clinical outcome is satisfying in both 1 year and 5 year postoperative follow -up results.