Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201203, China.
Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, China.
J Healthc Eng. 2017;2017:2941048. doi: 10.1155/2017/2941048. Epub 2017 Aug 13.
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.
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).
McGS was significantly correlated to C0-C2 angle ( = 0.57), C0-C2 SVA ( = -0.53), C2-C7 SVA ( = -0.28), and CG-C7 SVA ( = -0.47). CG-C7 SVA was also significantly correlated to curvature type ( = 0.27), C5-C7 angle ( = -0.37), and C2-C7 angle ( = -0.39).
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.
本研究旨在探讨与自然头位相关的参数与颈痛患者颈椎节段角度和排列之间的关系。
收集了 103 例患者的颈椎侧位片，回顾性分析自然头位与颈椎局部矢状面角度和排列之间的相关性。矢状面测量包括：颈椎曲度分类、McGregor 线斜率（McGS）、局部矢状面角度（C0-C2 角、C2-C5 角、C5-C7 角和 C2-C7 角）、T1 斜率、头重心到矢状垂直轴（CG-C7 SVA）和局部矢状面排列（C0-C2 SVA 和 C2-C7 SVA）。
McGS 与 C0-C2 角（ = 0.57）、C0-C2 SVA（ = -0.53）、C2-C7 SVA（ = -0.28）和 CG-C7 SVA（ = -0.47）显著相关。CG-C7 SVA 还与曲率类型（ = 0.27）、C5-C7 角（ = -0.37）和 C2-C7 角（ = -0.39）显著相关。
头位后伸伴颈椎曲度相对正常，可能与颈椎的机械状态异常有关。通过生物力学分析进一步证实姿势控制在缓解颈椎异常机械状态中的作用。
