权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Co-operative Study on the Pathologic Process of the Articular Disk in Patients with Internal Derangements of the Temporomandibular Joint

颞下颌关节内部紊乱患者关节盘病理过程的合作研究

基本信息

批准号：
62480410
负责人：
TAKANO Naohisa
金额：
$ 3.58万
依托单位：
Tokyo Dental College
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1989
项目状态：
已结题

项目摘要

The purpose of this study is to gain more information about pathologic process in the disks of internal derangements. TMJ fluorarthorography on 327 joints in 280 patients were performed.1. Arthrographic results showed that abnormal disk movements were found in 222 joints (67.9%). These diagnosis were as follows, anterior displacement without reduction was 155 joints (69.8%), anterior displacement with reduction was 57 joints (25.7%), incoordination was 8 joints (3.6%) and posterior displacement with reduction was 2 joints (0.9%). Disk deformity were found in 81 joints 24.8%). These diagnosis were as follows, perforation and rupture were 56 joints (69.1%), adhesion was 18 joints (22.2%) and abnormal thickness was 7 joints (8.6%).2. Inferolateral approach method was used under local or general anesthesia, arthroscope was inserted to upper joint compartment and examined the findings. Arthroseopic findings were narrowing of the space, hyperemid, existence of fibrous mass and discal perfora … More tion. Arthroseopic finding of fibrous adhesion was observed in 18 joints, those were fibrous band running up to down from anterior pouch to medial wall, close contact between folded disk and anterior attachment, and fibrous bar in the intra-synovial space.3. The Color X-ray CT images processing system developed previously was improved to reconstruct three-dimensional images of coronal, sagittal, and oblique processing from a series of original axial scan data of the X-ray CT scanner. The color-reformatted images reconstructed for TMJ bone and soft tissues clearly and various soft tissues such as muscular and fatty tissues are easily distinguishable. However, the double contrast arthrographic CT data is not suitable for color- reformatted image reconstruction. This study shows the sagittal scan image with typical deformity of the condyle and anterior displacement of disk was demonstrated. This study shows the coronal scan image with anteromedial displacement of disk.4. Former our study described the presence of degenerative changes (decreased or loss of elastin), thickened arterial wall and calcification in the disks of internal derangements. Histopathological observation was examined 10 resected TMJ disks under diskectomy. Results of this study demonstrate degenerative changes in the central posterior part of the disks, and increased amount of vascularity in the posterior band. Less

本研究的目的是获得更多关于椎间盘内紊乱的病理过程的信息。对280例患者327个关节进行TMJ X线透视.关节造影结果显示，222个关节盘运动异常（67.9%）。前移位未复位155个关节（69.8%），前移位复位57个关节（25.7%），关节不协调8个关节（3.6%），后移位复位2个关节（0.9%）。关节盘畸形81个（24.8%）。结果：1.诊断：穿孔、破裂56个关节（69.1%），粘连18个关节（22.2%），厚度异常7个关节（8.6%）.在局麻或全麻下采用下外侧入路，将关节镜插入上关节室并检查所见。关节镜下表现为椎间隙变窄、过度充盈、纤维团及椎间盘穿孔 ...更多信息是的。关节镜下18个关节可见纤维粘连，表现为前囊至内侧壁的纤维带，折叠盘与前附件紧密接触，滑膜间隙内可见纤维条.本文改进了以前开发的彩色X线CT图像处理系统，使其能从X线CT扫描机的一系列原始轴向扫描数据中重建出冠状、矢状和斜位处理的三维图像。重建后的TMJ骨及软组织图像清晰，肌肉、脂肪等软组织易于区分。然而，双对比度关节造影CT数据不适合于彩色重组图像重建。矢状面扫描显示髁突典型畸形及关节盘前移位。本研究显示了冠状位扫描图像与椎间盘前内侧移位.以前我们的研究描述了存在退行性变化（弹性蛋白减少或丢失），动脉壁增厚和内部紊乱的椎间盘钙化。对10例颞下颌关节盘切除术后进行组织学观察。本研究的结果表明椎间盘中央后部的退行性变化，以及后带血管数量的增加。少