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.
目的：对颈脊髓压迫患者采用锚定法单开门颈椎管扩大椎板成形术治疗，观察其疗效。
Objective: To evaluate the clinical effect of a modified open-door extensive laminoplasty using anchor method for the treatment of patients with cervical spinal cord compression.
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