The main causes of FBSS are spinal canal stenosis and lumbar spine instability.
术后椎管狭窄和腰椎不稳定是腰椎间盘突出症术后失败的主要原因。
Objective: to evaluate the efficacy of decompress laminectomy, pedicle screw fixation and posterior lumbar fusion in the treatment of degenerative lumbar spinal stenosis with segmental instability.
目的：观察腰椎管减压、横突间或椎体间植骨脊柱融合和椎弓根螺钉内固定手术治疗退变性腰椎管狭窄合并节段性腰椎不稳定患者的效果。
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