Zhong Zhuan, Sun Jialiang, Yu Zhentao, Han Yingying, Kang Chunyang
Department of Orthopaedics, The Second Hospital of Jilin University.
Department of Pediatrics, The First Hospital of Jilin University.
Medicine (Baltimore). 2020 Oct 23;99(43):e22779. doi: 10.1097/MD.0000000000022779.
This study aimed to measure temporomandibular joint (TMJ) with 3-dimensional (3D) reconstruction technique in Chinese northeast population, and to clarify the region for fixation and to provide morphological basis for the application of TMJ prosthesis in Chinese setting.Computed tomography (CT) scan and 3D reconstruction were performed with 132 individuals. Structural markers and measurements were further performed with a 3D model of the total TMJ, including the width, thickness and angle of zygomatic arch, the width and height of articular fossa, as well as the area, width, thickness and angle of mandible in the fixation region of the TMJ prosthesis. All the measured indicators values were compared between bilateral sides and gender groups.There was no statistical difference in the measured indicators between the left side and the right side (P > .05). However, certain parameters, including S, L5, L7, P4, and P5, were significantly different among males and females (P < .05).In this study, 3D CT image was used to obtain the measurement data of TMJ, which provided data support for the clinical application of TMJ prosthesis in Chinese population.
本研究旨在采用三维（3D）重建技术对中国东北地区人群的颞下颌关节（TMJ）进行测量，明确固定区域，为TMJ假体在中国的应用提供形态学依据。对132名个体进行了计算机断层扫描（CT）及3D重建。利用TMJ整体的3D模型进一步进行结构标记和测量，包括颧弓的宽度、厚度和角度，关节窝的宽度和高度，以及TMJ假体固定区域下颌骨的面积、宽度、厚度和角度。对所有测量指标值在双侧及性别组之间进行比较。左侧与右侧之间的测量指标无统计学差异（P>0.05）。然而，包括S、L5、L7、P4和P5在内的某些参数在男性和女性之间存在显著差异（P<0.05）。本研究利用3D CT图像获取TMJ的测量数据，为TMJ假体在中国人群中的临床应用提供了数据支持。
