两种椎间融合器临床疗效比较

Comparison of clinical outcome of two types of fusion cage

目的评价两种常用cage类型BAK-cage和PEEK-(矩形)cage的临床疗效。方法回顾性分析共80例使用腰椎融合器的腰椎退行性变患者的临床效果。并根据使用cage的类型分为两组(BAK组45例,PEEK组35例)进行比较。结果不同cage组术前各项检查指标间差异均无统计学意义,术后两组患者椎间隙高度、滑脱指数均较术前有明显改善,两组之间差异无统计学意义。术后BAK-cage组发生1例融合失败,2例出现融合器沉陷,4例患者术后出现神经根牵拉症状。PEEK-cage组无严重并发症病例。PEEK-cage在影像学观察上比BAK-cage更直观。结论两种cage在腰椎融合术中疗效相近,PEEK-cage发生术后并发症概率小于BAK-cage,并且在术后临床观察中更为直观方便。

Objective To evaluate the clinical effect of two types of usually used fusion cage. Methods The clinical effect of lumbar fusion cage was retrospectively analyzed in 80 patients with lumbar regressive disease. To divide the patients into two groups judged by the used cage type,and to compare the index between two groups. Results No significant difference showed in each group before operation. In each group, there was significant difference in height of vertebral space and Taillard index. But there was no difference between two groups. There existed 1 case of failure in fusion, 2 cases of cage subsidence, 4 cases of nerve root drag symptom in the BAK-cage group. No serious complication occurred in PEEK-rectangle cage group. PEEK-rectangle cage was more direct than BAK-cage in radiographic observation. Conclusion The clinic effect of two types of cage is similar, but the complication rate of PEEK-rectangle cage is less than that of BAK -cage. In radiographic observation, the PEEK-rectangle cage is more direct and easy.