Objective: To study the stability of new bone formed in distraction osteogenesis by cephalometric analysis.
目的：通过头影测量方法研究狗下颌骨牵张成骨新骨形成及其稳定性。
Method: Analysis retrospectively clinical data from 26 case of patient with lumbar disk hernia with damage of cauda nerve treated by distraction laminoplasty.
方法：对采用撑开式椎板成形术治疗的26例伴有马尾神经损害的腰椎间盘突出症患者的临床资料进行回顾性分析。
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