PDF(Pubmed)
Abstract：
Background: Forward head posture (FHP) and altered cervical lordotic curvatures are common spine displacements often associated with neck pain and disability. Two primary categories for determining FHP exist: radiographic and postural measurements. Methods: This study investigated the correlation between the craniovertebral angle (CVA), the radiographically measured C2-C7 sagittal vertical axis (SVA), and cervical lordosis (absolute rotation angle: ARA C2-C7) in a sample of participants with chronic myofascial pain (CMP). In 120 participants, we performed both a postural measurement of the CVA and a lateral cervical radiograph, where the C2-C7 SVA and ARA C2-C7 were measured. A linear-regression R2 value to assess the correlation between the CVA, C2-C7 SVA, and ARA C2-C7 was sought. Results: A statistically significant weak linear fit was identified (Spearman\'s r = 0.549; R2 = 0.30, p < 0.001) between the CVA and C2-C7 SVA, having considerable variation between the two measures. A statistically significant linear fit (very weak) was identified for the lordosis ARA C2-C7 and the CVA: Spearman\'s r = 0.524; R2 = 0.275; p < 0.001. A value of 50° for the CVA corresponded to a value of 20 mm for the C2-C7 SVA on an X-ray. Conclusion: While the CVA and radiographic C2-C7 SVA are weakly correlated in an individual, they seem to represent different aspects of sagittal cervical balance. The CVA cannot replace radiographically measured cervical lordosis. We recommend that more emphasis be given to radiographic measures of sagittal cervical alignment than the CVA when considering patient interventions.
摘要：
背景：前头姿势（FHP）和颈椎前凸曲率改变是常见的脊柱移位，通常与颈部疼痛和残疾有关。确定FHP的主要类别有两个：射线照相和姿势测量。方法：本研究调查了头颅角（CVA）之间的相关性，射线照相测量的C2-C7矢状垂直轴（SVA），在慢性肌筋膜疼痛（CMP）的参与者样本中，宫颈前凸（绝对旋转角度：ARAC2-C7）。在120名参与者中，我们进行了CVA的体位测量和颈椎侧位片，其中测量C2-C7SVA和ARAC2-C7。线性回归R2值评估CVA之间的相关性，C2-C7SVA,并寻求ARAC2-C7。结果：在CVA和C2-C7SVA之间确定了具有统计学意义的弱线性拟合（Spearman\sr=0.549；R2=0.30，p<0.001），这两种措施之间有很大的差异。对于前凸ARAC2-C7和CVA,确定了统计学上显著的线性拟合(非常弱):Spearman'sr=0.524;R2=0.275;p<0.001。CVA的50°值对应于X射线上C2-C7SVA的20mm值。结论：虽然CVA和放射学C2-C7SVA在个体中弱相关，它们似乎代表了矢状宫颈平衡的不同方面。CVA不能代替影像学测量的宫颈前凸度。我们建议在考虑患者干预措施时，与CVA相比，应更加重视矢状宫颈对齐的影像学检查。
