Centerpiece钢板在颈椎后路单开门椎管成形术中的应用

Application experience of Centerpiece plate in the posterior cervical spine single door vertebral canal keratoplasty

目的：探讨Centerpiece钢板在多节段脊髓型颈椎病（ MCSM）后路单开门椎管成形术中的应用效果。方法采用单开门椎管扩大成形术Centerpiece钢板固定治疗16例MCSM患者，手术减压C3-75个节段12例， C4-74个节段4例。常规单开门，将Centerpiece钢板板固定于门轴对侧的侧块上，另一端叉口固定在棘突根部椎板，术中保留棘突及棘上韧带的完整性，钢板支撑维持椎板的开门状态。结果患者均获得随访，时间12-36个月。术后JOA评分由术前6-12（11．38±1．40）分提高到8-16（15．87±1．20）分；患者开门轴侧均得到骨性愈合，未出现轴侧断裂及再关门现象；术后患者神经功能改善满意。结论 Centerpiece钢板在颈椎后路单开门椎管成形术中应用安全、简便，能有效维持椎板开门状态，利于神经功能恢复，近期疗效满意。

Objective To evaluate the effect of Centerpiece plate on posterior open-door laminoplasty of multilevel cervical spondylotic myelopathy （MCSM）. Methods Sixteen cases of MCSM were treated with Centerpiece plate fixation in single-door open-door laminoplasty, 12 cases of C3-7 5 segments and 4 cases of C4-7 4 segments. Conven-tional single-door, the Centerpiece plate fixed to the side of the door on the side of the shaft block, the other end of the fork in the spinous process to the root laminectomy, intraoperative spinous process and to retain the integrity of the ligament, plate to maintain the maintenance of the lamina open state. Results All patients were followed up for 12-36 months. The postoperative JOA score increased from 6 -12 （ 11. 38 ± 1. 40 ） points to 8 -16 （ 15. 87 ± 1. 20） points,the patients got bony union on the axial side of the door, without axial fracture and reclosure;patients of neurological function improved satisfactly. Conclusions Centerpiece plate is safe and convenient in posterior open-door laminoplasty. It can effectively maintain the open-door state of laminectomy, which is beneficial to the re-covery of nerve function and satisfactory curative effect in the near future.