Zhou Hao, Wang Jianxi, Zhang Wenyu, Gao Chenfei, Hu Bo, Zhen Genjiang, Li Xingyu, Wang Hui, Yuan Wen, Chen Huajiang, Liang Lei
Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Global Spine J. 2025 Jan 27:21925682251316835. doi: 10.1177/21925682251316835.
Retrospective cohort study.
To explore the correlation between Facet Tropism (FT) and OPLL in cervical spine.
One-hundred patients with OPLL of cervical spine and one-hundred normal participants without OPLL or cervical disc herniation were included in this study, the patients were matched to the normal participants respectively based on the same sex and similar age (±5). For patients, the cervical levels with and without OPLL were categorized into "OPLL group" and "patient control group," respectively. Bilateral facet joint angles at C2/3-C6/7 were measured on sagittal, coronal, and axial planes on CT.
On every planes at the level of C2/3-C6/7,the mean difference between left and right facet angles and FT incidence in the most levels of the OPLL group were significantly greater than those in the control groups ( < 0.001). At the most cervical levels, there was no significant difference in mean difference of facet angles and FT incidence between the 2 control groups. On the axial plane, the incidence of FT in segmental type OPLL patients was significantly higher than that in continuous type OPLL patients ( = 0.036). On the coronal plane, the incidence of FT in segmental type OPLL was significantly higher than that in the other OPLL types ( < 0.001), and local type OPLL had a higher incidence of FT compared to mixed type OPLL ( = 0.016). On the sagittal plane, the incidence of FT in segmental type OPLL was higher than that in continuous type OPLL ( = 0.019) and mixed type OPLL ( = 0.036).
There is a significant correlation between OPLL of cervical spine and FT. There are significant differences in the incidence of FT among different cervical OPLL types.
回顾性队列研究。
探讨颈椎小关节不对称（FT）与颈椎后纵韧带骨化症（OPLL）之间的相关性。
本研究纳入100例颈椎OPLL患者和100例无OPLL或颈椎间盘突出症的正常参与者，患者分别根据性别相同和年龄相近（±5岁）与正常参与者进行匹配。对于患者，有OPLL和无OPLL的颈椎节段分别分为“OPLL组”和“患者对照组”。在CT矢状面、冠状面和轴位面上测量C2/3 - C6/7双侧小关节角度。
在C2/3 - C6/7水平的每个平面上，OPLL组大多数节段的左右小关节角度平均差异和FT发生率均显著高于对照组（<0.001）。在大多数颈椎节段，两个对照组之间的小关节角度平均差异和FT发生率无显著差异。在轴位面上，节段型OPLL患者的FT发生率显著高于连续型OPLL患者（=0.036）。在冠状面上，节段型OPLL的FT发生率显著高于其他OPLL类型（<0.001），与混合型OPLL相比，局部型OPLL的FT发生率更高（=0.016）。在矢状面上，节段型OPLL的FT发生率高于连续型OPLL（=0.019）和混合型OPLL（=0.036）。
颈椎OPLL与FT之间存在显著相关性。不同颈椎OPLL类型之间的FT发生率存在显著差异。
