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.
椎板成形术用于治疗引起的疼痛的椎管狭窄。手术为脊髓和神经根创造更多的空间，迅速解除压迫。
Laminaplasty is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure.
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。
Method: Analysis retrospectively clinical data from 26 case of patient with lumbar disk hernia with damage of cauda nerve treated by distraction laminoplasty.
结果：本组C5神经根麻痹的发生率为5.7%，包括单开门椎管成形术2例、全椎板切除减压术7例。
Result: The incidence of C5 palsy was 5.7% in this study, including 2 after laminoplasty and 7 after laminectomy.
结论采用T -型锯将椎板整块切除后精确回植的椎管成形术，可恢复椎管正常解剖，操作安全，是一种新的治疗椎管内肿瘤的手术方法。
Conclusions Recapping laminoplasty with T-saw can provide precise anatomic reconstruction of the spinal canal with little risk, it's a new method to treat spinal tumor.
结论采用T -型锯将椎板整块切除后精确回植的椎管成形术，可恢复椎管正常解剖，操作安全，是一种新的治疗椎管内肿瘤的手术方法。
Conclusions Recapping laminoplasty with T-saw can provide precise anatomic reconstruction of the spinal canal with little risk, it's a new method to treat spinal tumor.
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