目的：研究中下段颈椎的蠕变特性，并评估前路椎间盘切除植骨术与后路椎板成形术对其的影响。

Objective: To study creeping properties of the middle and lower cervical vertebrae and to evaluate the effects of aminoplasty or anterior diskectomy and spinal fusion.

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目的：观察侧前方椎间盘切除同时加椎间植骨及内固定术治疗胸腰段椎间盘突出症的治疗效果。

Objective: to observe the effect of anterolateral diskectomy plus bone graft and internal fixation in thoracolumbar disk herniation.

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