Centerpiece颈后路内固定在椎管扩大成形术中的应用

目的：探讨Centerpiece颈后路内固定系统在单开门颈椎管扩大成形术中的应用。方法：采用单开门椎管扩大成形Centerpiece颈后路内固定术治疗多节段颈椎退变性疾病患者22例，按照（JOA）17分评分法评价术后神经功能恢复情况，X线、CT及MRI等观察脊髓减压及门轴侧骨融合情况。结果：椎管矢状径增加，椎管横截面面积明显扩大，脊髓膨隆良好；铰链侧全部骨性融合，无“关门”现象；无颈椎节段不稳及颈椎曲度改变；术前JOA评分5~15（10.18±2.67）分；术后7~17（13.18±2.75）分，平均改善率45.86%。结论：Centerpiece颈后路内固定在单开门颈椎管扩大成形术中应用，安全、有效，在开门的同时，颈椎可以获得即刻稳定。

Centerpiece of Cervical Posterior Internal Fixation in Application of Vertebral Canal Expanded Plasty

Objective To investigate the resu Hs of the Centerpiece cervical posterior internal fixation sys-tem in the application of the single door cervical vertebral tube expanding plasty. Methods Throush opening the door by single vertebral canal expanded forming Centerpiece cervical posterior fixation treatment of multiple segmental was done in 22 patients with degenerative disease of cervical vertebrae, According to the evaluation method for the 17 points score （JOA） postoperative neurologic recovery, X-ray, CT and MRI were performed to observe the spinal cord decompression bone door shaft side. Results The sagittal diameter of the vertebral ca-nal increased, with a significant increase in the vertebral canal cross sectional area,and a good spinal cord; with all osseous fusion of hinge side, without ＆quot;shut down＆quot; phenomenon; nor cervical segmental instability and cervi-cal curvature changes The preoperative JOA scores were 5~15 （10.18＋2.67） points; and the post-operative scores 7~17 points （13.18＋2.75）. The average improving rate was 45.86%. Conclusion Centerpiece of cervi-cal posterior internal fixation application in the single door cervical vertebra tube expanding keratoplastyis safe and effective;at the same time, the cervical vertebra can obtain immediate stability.