De Mot B, Casselman J, DeBoever J
Division of Maxillofacial Surgery, A.Z. St. Jan Hospital, Brugge, Belgium.
J Prosthet Dent. 1994 Sep;72(3):309-13. doi: 10.1016/0022-3913(94)90345-x.
Two imaging methods are useful in diagnosing internal derangements of the temporomandibular joint: arthrography and magnetic resonance imaging (MRI). Clinical and pseudodynamic MRI findings of 200 temporomandibular joints in 100 patients were evaluated and compared. In 66.5% of the joints, there was a positive correlation between both diagnostic methods. MRI showed the possibility to correct the clinical diagnosis in more than half of the remaining joints. The other half of the joints are a source of discussion and suggest that MRI has some difficulties in detecting the exact disk position, especially in joints with an anterior disk displacement with early reduction. MRI revealed degenerative changes in 43.5% of the joints. They were often seen in joints with a disk displacement without reduction, even in young patients. Pseudodynamic MRI is especially useful in the differential diagnosis of a "closed lock" and should certainly be done when disk surgery is planned.
关节造影术和磁共振成像（MRI）。对100例患者的200个颞下颌关节的临床和动态模拟MRI检查结果进行了评估和比较。在66.5%的关节中，两种诊断方法之间存在正相关。MRI显示在超过一半的其余关节中有可能纠正临床诊断。另一半关节是讨论的焦点，提示MRI在检测确切的盘状位置方面存在一些困难，尤其是在盘状前移位伴早期复位的关节中。MRI显示43.5%的关节有退行性改变。这些改变常见于盘状移位未复位的关节，即使在年轻患者中也是如此。动态模拟MRI在“闭口锁”的鉴别诊断中特别有用，并且在计划进行盘状手术时肯定应该进行。
