Westesson P L, Cohen J M, Tallents R H
Department of Radiology, University of Rochester School of Medicine and Dentistry, NY.
Oral Surg Oral Med Oral Pathol. 1991 Apr;71(4):407-11. doi: 10.1016/0030-4220(91)90417-b.
Sagittal and coronal surface coil magnetic resonance imaging was performed on 21 patients who about 2 years earlier had surgery for temporomandibular joint internal derangement. Surgical procedure included disk repositioning (23 joints) and diskectomy (seven joints). At the time of reimaging, 20 joints showed recurrence of pain and 10 joints were asymptomatic. Extensive fibrous tissue was seen in the joint space and in the joint capsule in 13 of the 20 painful joints, whereas minimal fibrous tissue in the lateral capsule wall was seen in 3 of the 10 nonpainful joints. Fibrous tissue was surgically confirmed in 10 of the painful joints. Disk displacement was seen in 11 of the 23 joints that had surgical disk repositioning. Disk displacement was seen in both painful (9/17) and nonpainful joints (2/6). It was concluded that magnetic resonance imaging is an excellent method for postoperative imaging of the temporomandibular joint and that attention should be directed to the presence or absence and extension of the fibrous tissue in the joint space and in the joint capsule.
对21例约2年前接受颞下颌关节内紊乱手术的患者进行矢状面和冠状面表面线圈磁共振成像。手术方式包括盘复位（23个关节）和盘切除术（7个关节）。再次成像时，20个关节出现疼痛复发，10个关节无症状。在20个疼痛关节中的13个关节的关节间隙和关节囊中可见大量纤维组织，而在10个无疼痛关节中的3个关节的外侧囊壁中可见少量纤维组织。在10个疼痛关节中经手术证实存在纤维组织。在23个接受手术盘复位的关节中的11个关节中可见盘移位。在疼痛关节（9/17）和无疼痛关节（2/6）中均可见盘移位。得出的结论是，磁共振成像是颞下颌关节术后成像的一种极好方法，并且应关注关节间隙和关节囊中纤维组织的有无及范围。
