objectiveto compare biomechanical effects of the posterolateral fusion (plf) and posterior lumbar interbody fusion (plif) with pedicle screw fixation for various spinal instabilities.
目的比较在失稳腰椎使用椎弓根钉固定的侧后方融合和经后路椎体间融合的生物力学效果。
objective to evaluate the surgical techniques and outcomes for complex stenosis of lumbar spine methods laminectomy and posterolateral fusion were performed in 21 patients.