Cortés Daniel, Exss Eduardo, Marholz Carlos, Millas Rodrigo, Moncada Gustavo
Universidad de Chile, [corrected] Santiago, Chile.
Cranio. 2011 Apr;29(2):117-26. doi: 10.1179/crn.2011.020.
The aim of this study was to determine the frequency and relationship between disk position and degenerative bone changes in the temporomandibular joints (TMJ), in subjects with internal derangement (ID). MRI and CT scans of 180 subjects with temporomandibular disorders (TMD) were studied. Different image parameters or characteristics were observed, such as disk position, joint effusion, condyle movement, degenerative bone changes (flattened, cortical erosions and irregularities), osteophytes, subchondral cysts and idiopathic condyle resorption. The present study concluded that there is a significant association between disk displacement without reduction and degenerative bone changes in patients with TMD. The study also found a high probability of degenerative bone changes when disk displacement without reduction is present. No association was found between TMD and condyle range of motion, joint effusion and/or degenerative bone changes. The following were the most frequent morphological changes observed: flattening of the anterior surface of the condyle; followed by erosions and irregularities of the joint surfaces; flattening of the articular surface of the temporal eminence, subchondral cysts, osteophytes; and idiopathic condyle resorption, in decreasing order.
本研究的目的是确定颞下颌关节内紊乱（ID）患者颞下颌关节（TMJ）中盘位置与退行性骨改变之间的频率及关系。对180例颞下颌关节紊乱病（TMD）患者的MRI和CT扫描进行了研究。观察了不同的图像参数或特征，如盘位置、关节积液、髁突运动、退行性骨改变（变平、皮质侵蚀和不规则）、骨赘、软骨下囊肿和特发性髁突吸收。本研究得出结论，TMD患者中不可复性盘移位与退行性骨改变之间存在显著关联。该研究还发现，当存在不可复性盘移位时，发生退行性骨改变的可能性很高。未发现TMD与髁突运动范围、关节积液和/或退行性骨改变之间存在关联。观察到的最常见形态学改变如下：髁突前表面变平；其次是关节面侵蚀和不规则；颞骨隆突关节面变平、软骨下囊肿、骨赘；以及特发性髁突吸收，按频率递减顺序排列。
