PEEK棒与钛棒在椎弓根螺钉内固定治疗腰椎退行性疾病中的疗效研究

摘要

目的：探讨聚醚醚酮( PEEK)棒与钛棒在椎弓根螺钉后正中入路减压植骨融合内固定术治疗腰椎退行性疾病中的临床疗效,为临床工作提供参考。方法回顾性分析我院2011年3月至2013年3月收治的50例腰椎退行性疾病患者的临床资料,所有患者均行腰椎后正中入路减压植骨融合内固定术,根据使用的连接棒材料,将患者随机分为PEEK棒组和钛棒组,PEEK棒组25例患者采用PEEK棒连接融合节段,钛棒组25例患者应用钛合金棒连接融合节段。根据JOA评分标准及Oswestry功能障碍指数评定对患者术前、术后1个月、术后6个月及术后1年的临床疗效进行对比分析。将2组患者术后1个月、术后6个月及术后1年的椎间隙高度变化进行比较。比较2组术后末次随访时融合节段及邻近节段的活动范围,并对2组患者在术后1个月、6个月、1年行腰椎手术区X线片检查,评估其融合率。结果2组患者的JOA评分及Oswestry评分和融合率比较差异均无统计学意义( P>0.05)。2组患者的椎间隙高度变化差异具有统计学意义(P<0.05)。2组术后末次随访时融合节段及邻近节段的活动范围PEEK棒组明显优于钛棒组,差异具有统计学意义(P<0.05)。结论 PEEK棒联合椎弓根螺钉内固定术在治疗患者腰椎退行性疾病中与钛棒的临床疗效相当,但在腰椎活动度及椎间隙高度丢失方面,PEEK棒优于钛棒。%Objective To explore the clinical efficacy of polyetheretherketone( PEEK) cages and titanium cages combined with pedicle screw fixation operation in treatment of lumbar degenerative disease,and provide reference for clinic. Methods The data of 50 patients with lumbar degenerative disease in our hospital from March 2011 to March 2013 were retrospectively analyzed. All patients were treated with pos-terior decompression,bone graft and transpedicular screw internal fixation,according to the different cages,they were divided into PEEK group and titanium group. The PEEK group with 25 patients used polyetheretherketone cages,and the titanium group with 25 patients used titanium cages. The JOA scores of patient before surgery,1 month,6 months and 1 year after surgery between two groups were recorded and compared. The ROM of fusion levels and adjacent segment of patients before and after operation between two groups were compared. Results There was no statistical significance of difference in JOA score,Oswestry score and fusion rate between two groups(P>0. 05). There were statistical significance of differences intervertebral disc height change between 2 groups(P<0. 05). The ROM of fusion levels and adjacent segment of patients in PEEK group was better than those in titanium group(P<0. 05). Conclusion The polyetheretherketone cages combined with pedicle screw fixation operation have a good effect in the treatment of patients with lumbar degenerative disease,especially in matter of lumbar spinal motion and intervertebral height lost.