单枚Cage结合单侧椎弓根螺钉固定与双侧固定治疗退行性腰椎不稳的疗效比较

目的对比分析评价单枚Cage后路斜向植入结合单侧椎弓根螺钉固定与双侧椎弓根螺钉固定两种术式的优缺点。方法回顾性分析2009年1月至2011年6月该院采用后路腰椎椎弓根钉内固定结合椎间Cage植骨融合方法治疗的腰椎单节段退性行不稳病变43例患者的临床资料。结果单侧固定组患者手术时间(131±12)min]、术中出血量(497±32)mL]、住院时间(12.3±1.6)d]与双侧固定组手术时间、术中出血量、住院时间分别为(168±17)min、(745±46)mL、(14.1±2.1)d]比较,差异有统计学意义(P<0.05)。结论单枚Cage后路斜向植入结合单侧椎弓根螺钉固定术式具有手术时间短、手术失血量少、对脊柱结构破坏少、治疗费用较低等优点。

Comparison of curative effects of unilateral pedicle screw fixation with a single Cage and bilateral pedicle screw fixation in treating degenerative lumbar spinal instability

Objective To compare and analyse the advantages and disadvantages between unilateral pedicle screw fixation with a single Cage and bilateral pedicle screw fixation.Methods To perform the retrospective analysis on the clinical data in 43 cases of degenerative lumbar spinal instability treated by posterior pedicle screw fixation with a single cage.Results The operation time,blood loss and duration hospital stay were(131±12)min,(497±32)mL and(12.3±1.6)d in the group 1(unilateral pedicle screw fixation) and(168±17)min,(745±46)mL and(14.1±2.1)d in the group 2(bilateral pedicle screw fixation),showing statistical difference between the two groups(P<0.05).Conclusion Unilateral pedicle screw fixation with a single Cage has the advantages of shorter surgery time,less blood loss,less destruction of spine dissection and low medical costs,etc.