The Influence of Natural Head Position on the Cervical Sagittal Alignment.
The Influence of Natural Head Position on the Cervical Sagittal Alignment.
复制标题
自然头位对颈椎矢状排列的影响
DOI：
10.1155/2017/2941048
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发表时间：
2017
影响因子：
--
通讯作者：
Zhan H
中科院分区：
文献类型：
--
作者：
Wang K;Deng Z;Li Z;Wang H;Zhan H
本研究探讨了颈痛患者的自然头位与颈椎节段角度及对中相关参数之间的关系。材料与方法收集103例患者的颈椎侧位x线片，回顾性分析自然头位、颈椎局部矢状角和颈椎对中之间的相关性。矢状面测量如下：颈椎曲度分级、McGregor线斜率（McGS）、局部矢状角（C0-C2角、C2-C5角、C5-C7角、C2-C7角）、T1斜率、头部重心与矢状垂直轴（CG-C7 SVA）、局部矢状线对中（C0-C2 SVA和C2-C7 SVA）。结果McGS与C0-C2角度（r = 0.57）、C0-C2 SVA （r = - 0.53）、C2-C7 SVA （r = - 0.28）、CG-C7 SVA （r = - 0.47）显著相关。CG-C7 SVA与曲率类型（r = 0.27）、C5-C7角度（r = - 0.37）、C2-C7角度（r = - 0.39）也有显著相关。结论：向后移位伴头位伸展可能伴随颈椎相对正常的曲度。体位控制对缓解颈椎异常力学状态的作用有待生物力学分析进一步证实。
Introduction This study investigated the relationship between the parameters related to the natural head position and cervical segmental angles and alignment of patients with neck pain. Material and Methods The lateral radiographs of the cervical spine were collected from 103 patients and were used to retrospectively analyze the correlation between the natural head position, cervical local sagittal angles, and alignment. Sagittal measurements were as follows: cervical curvature classification, slope of McGregor's line (McGS), local sagittal angles (C0–C2 angle, C2–C5 angle, C5–C7 angle, and C2–C7 angle), T1 slope, center of gravity of the head to sagittal vertical axis (CG–C7 SVA), and local sagittal alignment (C0–C2 SVA and C2–C7 SVA). Results McGS was significantly correlated to C0–C2 angle (r = 0.57), C0–C2 SVA (r = −0.53), C2–C7 SVA (r = −0.28), and CG–C7 SVA (r = −0.47). CG–C7 SVA was also significantly correlated to curvature type (r = 0.27), C5–C7 angle (r = −0.37), and C2–C7 angle (r = −0.39). Conclusions A backward shift with an extended head position may accompany a relatively normal curvature of the cervical spine. The effect of posture control in relieving abnormal mechanical state of the cervical spine needs to be further confirmed by biomechanical analysis.