Laskin D M
Department of Oral and Maxillofacial Surgery, School of Dentistry, Medical College of Virginia, Virginia Commonwealth University, Richmond.
Radiol Clin North Am. 1993 Jan;31(1):135-47.
The pathologic conditions that involve the TMJ are similar to those conditions that involve other joints in the body. Therefore, many of the radiologic characteristics of these diseases are also similar. Nevertheless, because the articular surface of the condyle is an important site of mandibular growth, leading to secondary facial asymmetries when damaged in young patients, this possibility must be considered when evaluating the radiographic changes. It also is important to understand that functionally the TMJs act as a single unit and that any alteration in function caused by a pathologic process on one side can lead to disturbed function on the opposite side. Such dysfunction can cause degenerative changes that must be distinguished from the primary disease. Finally, some of the conditions that involve the TMJ can produce rather similar radiographic changes. In these instances, an understanding of the associated clinical findings can be helpful in making a more accurate radiographic diagnosis.
累及颞下颌关节的病理状况与累及身体其他关节的状况相似。因此，这些疾病的许多放射学特征也相似。然而，由于髁突的关节面是下颌骨生长的重要部位，在年轻患者中受损时会导致继发性面部不对称，所以在评估放射学改变时必须考虑到这种可能性。同样重要的是要明白，在功能上颞下颌关节是一个单一的单元，一侧病理过程引起的功能改变可导致对侧功能紊乱。这种功能障碍可引起退行性改变，必须与原发性疾病相区分。最后，一些累及颞下颌关节的状况可产生相当相似的放射学改变。在这些情况下，了解相关的临床发现有助于做出更准确的放射学诊断。
