颈椎关节突关节矢状位角的不对称性和关节突关节退变关系的影像学研究

目的 探讨颈椎关节突关节矢状位角的不对称性和关节突关节退变的关系。 方法 利用4度评估法，3位测评者对20具新鲜尸体颈椎标本的轴向位CT图像上C3/4 ~ C6/7节段共160个关节突关节矢状位角和退变程度进行单盲随机测评，并统计分析。 结果 20具颈椎标本在不同节段间的关节突关节矢状位不对称角度无显著性差异（F＝0.55，P＝0.65），关节突关节退变程度也无显著性差异（左侧：Z＝3，P＝0.646；右侧：Z＝3，P＝0.376），但C3/4和C4/5的关节突关节矢状位角的不对称程度与同节段关节突关节退变的程度之间有显著的差异性（C3/4：Z＝8.567，P＝0.014；C4/5：Z＝2.000，P＝0.025）。 结论 关节突关节矢状位角的不对称性可能和关节突关节的退变有关。

Imaging study on the relationship between sagittal angle asymmetry of cervical facet joint and cervical facet joint degeneration

Objective To investigate the relationship between sagittal angle asymmetry of cervical facet joint and the degeneration of cervical facet joint. Methods The sagittal facet angle and the degeneration degree of 160 facet joint at C3/4-C6/7 segments on the axial CT of 20 fresh cervical cadaver specimens were evaluated blindly and statistically analyzed by 3 reviewers using the 4-degree evaluation method. Results There was no significant difference in sagittal asymmetrical angles of the facet joint between different segments (F= 0.55,P=0.65), and there was also no significant difference in the degeneration of cervical facet joint (left: Z=3, P=0.646; right: Z=3, P=0.376) between different segments, but there were significant differences between the sagittal angle asymmetry of cervical facet joint and the degeneration of cervical facet joint at C3/4 and C4/5 segments of 20 fresh cervical cadaver specimens（C3/4:Z=8.567, P=0.014,C4/5; Z=2.000, P=0.025）. Conclusion The sagittal angle asymmetry of cervical facet joint may be related to the degeneration of the facet joint.