Objective To evaluate the clinical application of atlantoaxial joint fusion using anterior transarticular screw fixation and bone grafting for atlantoaxial joint instability. Methods Twenty-three cases of atlantoaxial...Objective To evaluate the clinical application of atlantoaxial joint fusion using anterior transarticular screw fixation and bone grafting for atlantoaxial joint instability. Methods Twenty-three cases of atlantoaxial joint instability were展开更多
Objective： To compare the potential incidence of nerve root （ventral and dorsal ramus） injury caused by cervical transarticular screws and Roy-Camille lateral mass screws. Methods ： Insertion techniques with Kleka...Objective： To compare the potential incidence of nerve root （ventral and dorsal ramus） injury caused by cervical transarticular screws and Roy-Camille lateral mass screws. Methods ： Insertion techniques with Klekamp transarticular screws and Roy-Camille lateral mass screws were respectively performed in this study. Each technique involved four specimens and 40 screws, which were inserted from C3 to C7. And 20-mm-long screws were used to overpenetrate the ventral cortex. The anterolateral aspect of the cervical spine was carefully dissected to allow observation of the screw-ramus relationship. Results ： The overall percentage of nerve invasion was significantly lower with Klekamp （45%） technique than with Roy-Camille （ 85 %） technique （ P 〈 0.05 ）. The largest percentage of nerve invasion for Klekamp transarticular screws was found at the dorsal ramus （25 % ）, followed by the ventral ramus （ 15 % ） and the bifurcation of the ventral dorsal ramus （ 5 % ）. The largest percentage of nerve invasion for Roy-Camille lateral mass screws was found at the ventral ramus （80 % ）. Conclusion ： The potential risk of nerve root invasion is lower with Klekamp transarticular screws than with Roy Camille lateral mass screws.展开更多
目的:评估双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合治疗可复性寰枢椎脱位的中长期疗效。方法:回顾性分析85例在我院接受双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合术的可复性寰枢椎脱位患者的临床资料,其中男21例,女64例;年龄25~65岁(...目的:评估双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合治疗可复性寰枢椎脱位的中长期疗效。方法:回顾性分析85例在我院接受双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合术的可复性寰枢椎脱位患者的临床资料,其中男21例,女64例;年龄25~65岁(44±9.4岁)。寰椎爆裂性骨折19例,C1、2旋转脱位畸形16例,齿状突骨折26例,齿状突游离15例,寰椎类风湿性关节炎致寰枢椎脱位9例。通过Ranawat分级、颈椎功能障碍指数(NDI)以及颈部/枕骨下疼痛视觉模拟量表(visual analogue scale,VAS)评分评估患者的临床疗效;在术前和末次随访时的颈椎正侧位X线片、MRI、CT三维重建等资料中,提取以下影像学数据:寰齿前间距(atlanto-dental interval,ADI)、有效椎管容积(space available for cord,SAC)、C1-2角、C2-7角,并观察植骨融合情况及颈椎稳定性。结果:所有患者均完成5年以上的随访。末次随访时24例术前存在脊髓压迫症状患者的Ranawat分级有所改善;95%的患者颈部疼痛得到缓解,VAS评分由术前7.56±1.03分下降至2.53±0.53分(P<0.05);NDI由术前34.76±5.45分降至13.13±1.21分(P<0.05)。ADI由术前6.5±1.0mm降至2.4±0.9mm(P<0.05);SAC由术前13.37±2.11mm增大至19.93±2.20mm(P<0.05)。手术前C1-2角为21.9°±1.2°,末次随访时为26.6°±6.9°;手术前C2-7角为19.8°±9.2°,末次随访时为15.5°±5.9°。术后6个月,81例(95.3%)患者获得良好的植骨融合,4例患者出现植骨延迟愈合。结论:双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合治疗可复性寰枢椎脱位的长期疗效优良,是一种安全、可靠的后路寰枢椎固定融合技术。展开更多
文摘Objective To evaluate the clinical application of atlantoaxial joint fusion using anterior transarticular screw fixation and bone grafting for atlantoaxial joint instability. Methods Twenty-three cases of atlantoaxial joint instability were
文摘Objective： To compare the potential incidence of nerve root （ventral and dorsal ramus） injury caused by cervical transarticular screws and Roy-Camille lateral mass screws. Methods ： Insertion techniques with Klekamp transarticular screws and Roy-Camille lateral mass screws were respectively performed in this study. Each technique involved four specimens and 40 screws, which were inserted from C3 to C7. And 20-mm-long screws were used to overpenetrate the ventral cortex. The anterolateral aspect of the cervical spine was carefully dissected to allow observation of the screw-ramus relationship. Results ： The overall percentage of nerve invasion was significantly lower with Klekamp （45%） technique than with Roy-Camille （ 85 %） technique （ P 〈 0.05 ）. The largest percentage of nerve invasion for Klekamp transarticular screws was found at the dorsal ramus （25 % ）, followed by the ventral ramus （ 15 % ） and the bifurcation of the ventral dorsal ramus （ 5 % ）. The largest percentage of nerve invasion for Roy-Camille lateral mass screws was found at the ventral ramus （80 % ）. Conclusion ： The potential risk of nerve root invasion is lower with Klekamp transarticular screws than with Roy Camille lateral mass screws.
文摘目的:评估双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合治疗可复性寰枢椎脱位的中长期疗效。方法:回顾性分析85例在我院接受双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合术的可复性寰枢椎脱位患者的临床资料,其中男21例,女64例;年龄25~65岁(44±9.4岁)。寰椎爆裂性骨折19例,C1、2旋转脱位畸形16例,齿状突骨折26例,齿状突游离15例,寰椎类风湿性关节炎致寰枢椎脱位9例。通过Ranawat分级、颈椎功能障碍指数(NDI)以及颈部/枕骨下疼痛视觉模拟量表(visual analogue scale,VAS)评分评估患者的临床疗效;在术前和末次随访时的颈椎正侧位X线片、MRI、CT三维重建等资料中,提取以下影像学数据:寰齿前间距(atlanto-dental interval,ADI)、有效椎管容积(space available for cord,SAC)、C1-2角、C2-7角,并观察植骨融合情况及颈椎稳定性。结果:所有患者均完成5年以上的随访。末次随访时24例术前存在脊髓压迫症状患者的Ranawat分级有所改善;95%的患者颈部疼痛得到缓解,VAS评分由术前7.56±1.03分下降至2.53±0.53分(P<0.05);NDI由术前34.76±5.45分降至13.13±1.21分(P<0.05)。ADI由术前6.5±1.0mm降至2.4±0.9mm(P<0.05);SAC由术前13.37±2.11mm增大至19.93±2.20mm(P<0.05)。手术前C1-2角为21.9°±1.2°,末次随访时为26.6°±6.9°;手术前C2-7角为19.8°±9.2°,末次随访时为15.5°±5.9°。术后6个月,81例(95.3%)患者获得良好的植骨融合,4例患者出现植骨延迟愈合。结论:双侧经寰枢关节螺钉寰椎椎板钩固定植骨融合治疗可复性寰枢椎脱位的长期疗效优良,是一种安全、可靠的后路寰枢椎固定融合技术。
