目的:这项初步的形态学研究旨在研究前椎间盘移位(ADD)与下颌髁突和关节窝状态之间的关系。
方法:34例患者分为正常关节盘位置组和有复位和无复位的ADD组。重建的图像用于确定这三种不同类型的椎间盘位置的多组比较,并对具有显著组间差异的形态学参数的诊断效能进行分析评估。
结果:髁突体积(CV),髁突浅表区(CSA),上关节空间(SJS),内侧关节间隙(MJS)均有明显改变(P<0.05)。此外,它们在区分正常椎间盘位置和ADD方面均具有可靠的诊断准确性,AUC值为0.723~0.858.其中,CV,SJS,通过多因素logistic有序回归模型分析,MJS和MJS对各组有显著的正向影响(P<0.05)。
结论:CV,CSA,SJS,和MJS与不同的椎间盘位移类型显著相关。ADD中的髁表现出尺寸改变。这些可能是用于评估ADD的有前途的生物识别标记。
结论:下颌髁突和关节窝的形态改变受椎间盘移位状态的影响显著,椎间盘移位的髁突尺寸三维改变,不论年龄和性别。
OBJECTIVE: This pilot morphological study aimed to investigate the association between anterior disc displacement (ADD) and the status of the mandibular condyle and articular fossa.
METHODS: Thirty-four patients were divided into a normal articular disc position group and an ADD with and without reduction group. Images reconstructed were used to determine multiple group comparisons of these three different types of disc position, and the diagnostic efficacy for the morphological parameters with significant group difference was analyzed to assess.
RESULTS: The condylar volume (CV), condylar superficial area (CSA), superior joint space (SJS), and medial joint space (MJS) all exhibited obvious changes (P < 0.05). Additionally, they all had a reliable diagnostic accuracy in differentiating between normal disc position and ADD with an AUC value from 0.723 to 0.858. Among them, the CV, SJS, and MJS (P < 0.05) had a significantly positive impact on the groups by analysis of multivariate logistic ordinal regression model.
CONCLUSIONS: The CV, CSA, SJS, and MJS are significantly associated with different disc displacement types. The condyle in ADD exhibited altered dimensions. These could be promising biometric markers for assessing ADD.
CONCLUSIONS: The morphological changes of mandibular condyle and glenoid fossa were significantly influenced by the status of disc displacement, and condyles with disc displacement had three-dimensionally altered condylar dimensions, irrespective of age and sex.