基于2D/3D配准技术评估两种可调式颈托对椎间孔形态的影响

目的　基于2D/3D配准技术评估可调式颈托一代与二代对椎间孔形态的影响并进行对比，从而探讨哪种颈托可以更好地为颈椎病患者提供牵引治疗。 方法　利用2D/3D配准技术采集C2/3、C3/4、C4/5、C5/6双侧椎间孔面积等数据，计算不同角度椎间孔面积差值及面积增长率。统计对比颈托一代与二代不同角度椎间孔面积差值及面积增长率。 结果　通过对比，第二代颈托的牵引效果在颈椎大部分位置上统计学结果是显著的，差异有统计学意义（P＜0.05），尤其是C5/6节段在4个牵引角度上都是显著的。 结论　第二代颈托对于扩大椎间孔面积效果优于第一代颈托，能更有效地对颈椎病患者进行牵引治疗。

Evaluation of the effect of the two kinds of the adjustable neck bracket on the morphological parameters of intervertebral foramen based on 2D/3D registration technique

Objective　To investigate the effect of the two kinds of the adjustable neck bracket on the morphological parameters of the intervertebral foramen based on 2D/3D registration technique. And compare the two to discuss which kind of neck bracket can better provide traction treatment for patients with cervical spondylosis.　Methods　The 2D/3D registration technique was used to measure the bilateral intervertebral foramen area of C2/3, C3/4, C4/5 and C5/6. The intervertebral foramen area growth rates of different angles were calculated. The d-value of intervertebral foramen area and area growth rate of different angles between the first and the second generation of the neck bracket were statistically compared.　Results　By contrast, the effect of the second generation of the adjustable neck bracket was statistically significant in most cervical vertebrae（P<0.05）. In particular, the C5/6 segment was significant at 4 angles.　Conclusion　The effect of the second generation of the neck bracket in the enlargement of the area of the intervertebral foramen is better than that of the first generation. And the traction therapy for patients with cervical spondylosis is more effectively.