Dias Glaucia Marques, Grossmann Eduardo, Carvalho Antonio Carlos Pires, Devito Karina Lopes, Dos Santos Marcos Fabio, Ferreira Luciano Ambrosio
Programa de pós-graduação em Medicina (Radiologia) [Graduate program in Medicine (Radiology)], Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil.
Centro de Dor e Deformidade Orofacial (CENDDOR) [Orofacial Pain and Deformity Center], Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil.
Cranio. 2025 May;43(3):521-530. doi: 10.1080/08869634.2023.2203039. Epub 2023 Apr 25.
This study examined changes in magnetic resonance imaging (MRI) of temporomandibular joints (TMJ) with anterior displacement disk without reduction (DDwoR) and its correlation to clinical symptoms.
190 individuals with DDwoR were evaluated according to Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) and MRI. Pain's chronicity/intensity and limited mouth opening (locking) were correlated with: TMJ degeneration (MRI T1), effusion (T2), disc's shape and position (proton density).
In 103 TMJ with DDwoR, hemiconvex shape (41.6%), sclerosis (45.6%) and mild effusion (47.6%) were the most prevalent findings. There was not association ( > .05) between: different DDwoR positions with pain's intensity/chronicity; effusion with locking. Disk deformation was associated with degeneration ( = .034) and pain's intensity ( = .006). Locking was associated with degeneration ( = .05).
Condylar osteodegeneration is often related to DDwoR. Locking by DDwoR is associated with severe levels of chronic pain and articular disk deformation.
本研究探讨了不可复性盘前移位（DDwoR）的颞下颌关节（TMJ）的磁共振成像（MRI）变化及其与临床症状的相关性。
根据颞下颌关节紊乱病诊断标准（DC/TMD）和MRI对190例DDwoR患者进行评估。疼痛的慢性/强度和张口受限（锁定）与以下因素相关：TMJ退变（MRI T1）、积液（T2）、盘的形状和位置（质子密度）。
在103个DDwoR的TMJ中，最常见的表现是半凸形（41.6%）、硬化（45.6%）和轻度积液（47.6%）。不同的DDwoR位置与疼痛强度/慢性之间无关联（>0.05）；积液与锁定无关联。盘变形与退变（=0.034）和疼痛强度（=0.006）相关。锁定与退变（=0.05）相关。
髁突骨质退变常与DDwoR有关。DDwoR导致的锁定与严重程度的慢性疼痛和关节盘变形有关。
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