单开门颈椎管扩大成形Centerpiece钛板内固定术治疗颈椎管狭窄症的早期临床疗效

目的:探讨单开门颈椎管扩大成形Centerpiece钛板内固定术治疗颈椎管狭窄症的早期临床疗效。方法:2009年8月～2010年6月采用后路C3～C7单开门椎管扩大成形Centerpiece钛板内固定术治疗颈椎管狭窄症患者30例,其中男性23例,女性7例,年龄42～81岁,平均65.2岁。MRI显示3个节段狭窄9例,4个节段狭窄15例,5个节段狭窄6例。以JOA评分(17分法)及其改善率评价术后神经功能改善情况;术后复查颈椎X线、CT及MRI,在术前及术后3d、6个月的颈椎侧位X线片上测量C5节段椎管矢状径,计算椎管扩大率(术后椎管矢状径-术前椎管矢状径)/(术前椎管矢状径)×100%],评价椎管扩大和维持情况及门轴侧骨融合情况。结果:手术时间为145±20min,术中出血量为215±75ml,术中未出现相关并发症。1例术后第2天出现C5神经根症状,经2周保守治疗疼痛明显缓解,术后2个月时症状完全消失。随访9～20个月,平均14.6个月,术前JOA评分为8.7±0.8分,术后6个月为15.2±1.1分,改善率为(75±8)%。影像学复查示术后3d、6个月时颈椎管扩大满意,脊髓受压完全解除,C5节段椎管矢状径术前为9.2±0.8mm,术后3d、6个月均为15.9±1.2mm,椎管扩大率为(71.8±11.0)%。术后6个月时门轴侧均达骨性愈合,无1例出现关门及神经损害症状加重的情况。结论:单开门颈椎管扩大成形Centerpiece钛板内固定术是治疗颈椎管狭窄症的一种简便、安全的方法,早期疗效较满意。

Early clinical efficacy of unilateral open-door cervical expansive laminoplasty plus centerpiece titanium plate fixation for cervical spinal stenosis

Objective:To evaluate the early clinical efficacy of unilateral open-door cervical expansive laminoplasty plus centerpiece titanium plate fixation for cervical spinal stenosis.Method:From August 2009 to June 2010,30 cases suffering from cervical spinal stenosis underwent unilateral open-door expansive laminoplasty plus centerpiece fixation,of these,there were 23 males and 7 females,with a mean age of 65.2 years(range,42-81 years).Preoperative MRI showed stenosis at three levels in 9 cases,four levels in 15 ...