MRI findings of temporomandibular joints with disk perforation
MRI findings of temporomandibular joints with disk perforation
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DOI：
10.1016/j.tripleo.2007.11.020
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发表时间：
2008-09-01
期刊：
影响因子：
--
通讯作者：
Kurabayashi, Tohru
中科院分区：
文献类型：
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作者：
Kuribayashi, Ami;Okochi, Kiyoshi;Kurabayashi, Tohru
Objective.探讨颞下颌关节盘穿孔的磁共振成像（MRI）表现。对11名志愿者的31例（31例）关节盘穿孔、34例（37例）关节盘前移位但无关节盘穿孔和22例无症状的关节盘进行MRI检查。关节盘穿孔的存在或不存在由颞下颌关节造影证实。评价MR图像是否存在椎间盘畸形、椎间盘移位、髁突骨变化和关节积液，以及是否显示后椎间盘附着的颞后附着（TPA）。比较3组间的差异。椎间盘穿孔组的关节盘前移位和髁突骨质改变的发生率明显高于无症状组。椎盘穿孔组椎盘变形和TPA模糊的发生率明显高于其他两组。除了关节盘畸形外，颞下颌关节面模糊被认为是关节盘穿孔的特征性MRI表现之一。
Objective. To investigate magnetic resonance imaging (MRI) findings of temporomandibular joints (TMJs) with disk perforation.Study design. Thirty-one TMJs (31 patients) with disk perforation, 37 TMJs (34 patients) with anterior disk displacement and no disk perforation, and 22 asymptomatic TMJs of 11 volunteers were examined by MRI. The presence or absence of disk perforation was confirmed by TMJ arthrography. The MR images were evaluated for the presence or absence of disk deformity, disk displacement, condylar bone changes and joint effusion and for visualization of the temporal posterior attachment (TPA) of the posterior disk attachment. Those findings were compared among the 3 groups.Results. The incidences of anterior disk displacement and condylar bone changes in the patients group with disk perforation were significantly higher than in asymptomatic volunteers. Disk deformity and obscurity of TPA were significantly more frequent in the patient group with disk perforation than in the other 2 groups.Conclusion. In addition to disk deformity, TPA obscurity was considered to be one of the characteristic MRI findings of TMJs with disk perforation.