Three-dimensional analysis of the temporomandibular joint disk position and configulation

颞下颌关节盘位置和构型的三维分析

• 批准号: 04671232
• 负责人: TABATA Osamu
• 金额: $ 1.34万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04671232/
• 关键词: internal derangement; 3D image; TMJ disk; disk displacement; disk position; disk configulation; TMJ phantom

Internal derangement of the temporomandibular joint (TMJ) has been evaluated by using Arthrography, Arthroscopy, Computed Tomographt (CT) or Magnetic Resonance Imaging.But it is not enough to evaluate lateral or medial displacement of the TMJ disk.The purpose of this research is to analyze the TMJ disk position and configulation by using three-dimensional (3D) reconstruction image. The material and method is as follows ;1. We made a TMJ phantom which was composed a dry-skull and a artificial disk.2. CT images and tomographic images were obtained by scanning the TMJ phantom.3.3D images of CT and tomographic images were reconstructed by using 3D analyzing equipment (COSMOZONE 2SB, NIKON Co.ltd., Japan).4. We correlated and analyzed with TMJ disk position of 3D image and 2D image.3D image was useful to diagnose the TMJ disk position, especially lateral, medial, antero-medial and antero-lateral displacement. When we diagnosed 3D image, 3D image from superior direction was better than from lateral or frontal direction.And following, we analyzed 3D images reconstructed from clinical arthrotomographic images (133 patients who doubt internal derangement). Anterior disk displacement was 84%. Only 1 case (5%) was medial disk displacement. Antero-lateral or antero-medial disk displacement was 29%.Configulation of the TMJ disk distorted 75%.

颞下颌关节（TMJ）的内部紊乱可以通过关节造影、关节镜检查、计算机断层扫描（CT）或磁共振成像进行评估。但不足以评估颞下颌关节盘的横向或内侧移位。本研究的目的是通过使用三维（3D）重建图像来分析颞下颌关节盘的位置和配置。材料和方法如下： 1．制作了由干颅骨和人工椎间盘组成的颞下颌关节模型。 2．通过扫描TMJ模型获得CT图像和断层图像。3.使用3D分析设备(COSMOZONE 2SB，日本NIKON Co.ltdd)重建CT和断层图像的3D图像。4．我们将3D图像和2D图像的TMJ盘位置进行关联和分析。3D图像有助于诊断TMJ盘位置，特别是外侧、内侧、前内侧和前外侧位移。当我们诊断3D图像时，来自上方方向的3D图像优于来自侧面或正面方向的3D图像。接下来，我们分析了根据临床关节断层图像重建的3D图像（133名怀疑内部紊乱的患者）。椎间盘前移率为 84%。仅1例（5%）出现内侧椎间盘移位。前外侧或前内侧椎间盘位移为 29%。TMJ 椎间盘的配置扭曲了 75%。