Bedran Luciane Marie, Dos Santos Alair Augusto Sarmet Moreira Damas
Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil.
Radiol Bras. 2019 Mar-Apr;52(2):85-91. doi: 10.1590/0100-3984.2018.0020.
To assess changes in the articular surfaces of the temporomandibular joint (TMJ) and in condylar translation, as detected by magnetic resonance imaging (MRI), determining whether such changes correlate with disc displacement.
We retrospectively analyzed the MRI scans of 2076 TMJs of 1038 patients with symptoms of temporomandibular disorder. We attempted to determine whether articular disc deformity and changes in condylar translation, as well as changes in the articular surfaces of the condyle, glenoid fossa, and articular eminence, correlated with disc displacement.
Disc displacement with reduction was associated with changes in the shape of the articular eminence. Disc displacement without reduction was most strongly associated with disc deformity, condylar degeneration, glenoid fossa degeneration, and effusion. Neither decreases nor increases in condylar translation were associated with disc deformity, degenerative bone changes, or disc displacement.
Changes in the shape of the articular eminence seem to predispose to progression of internal derangement of the TMJ.
通过磁共振成像（MRI）评估颞下颌关节（TMJ）关节面及髁突移位的变化，确定这些变化是否与盘移位相关。
我们回顾性分析了1038例有颞下颌关节紊乱症状患者的2076个TMJ的MRI扫描图像。我们试图确定关节盘畸形、髁突移位变化以及髁突、关节窝和关节结节关节面的变化是否与盘移位相关。
可复性盘移位与关节结节形状改变有关。不可复性盘移位与盘畸形、髁突退变、关节窝退变及积液关系最为密切。髁突移位的减少或增加均与盘畸形、骨质退行性改变或盘移位无关。
关节结节形状的改变似乎易导致TMJ内紊乱的进展。
