Westesson P L, Brooks S L
Department of Radiology, University of Rochester School of Medicine and Dentistry, NY 14642-8694.
AJR Am J Roentgenol. 1992 Sep;159(3):559-63. doi: 10.2214/ajr.159.3.1503025.
The purpose of this study was to correlate MR evidence of joint effusion in the temporomandibular joint with symptoms of joint pain and the presence of disk displacement and arthrosis.
The temporomandibular joints of 379 patients with clinical symptoms of temporomandibular joint disorders and 11 asymptomatic volunteers were imaged bilaterally. Sagittal and coronal proton density-weighted and T2-weighted images were obtained. Imaging findings of joint effusion were correlated with the presence of disk displacement and arthrosis and the symptom of pain.
MR showed effusion in 7% of the joints with normal superior disk position, 40% of the joints with disk displacement with reduction, 50% of the joints with disk displacement without reduction, and 27% of the joints with arthrosis. Two of the control subjects had disk displacement with reduction; MR did not show joint effusion in any of the control subjects. A strong association was seen between joint effusion and joint pain. Joint effusion was seen in 46% of the joints on the more painful side and in 13% of the joints on the less painful side.
The results show that temporomandibular joint effusions primarily occur in joints with disk displacement and are strongly associated with joint pain.
本研究旨在将颞下颌关节内关节积液的磁共振成像（MR）证据与关节疼痛症状、盘移位及关节病的存在情况相关联。
对379例有颞下颌关节紊乱临床症状的患者及11名无症状志愿者的双侧颞下颌关节进行成像。获取矢状位和冠状位质子密度加权像及T2加权像。将关节积液的影像学表现与盘移位、关节病的存在情况及疼痛症状相关联。
MR显示，上盘位置正常的关节中有7%存在积液，可复性盘移位的关节中有40%存在积液，不可复性盘移位的关节中有50%存在积液，有关节病的关节中有27%存在积液。两名对照受试者存在可复性盘移位；对照受试者中MR均未显示关节积液。关节积液与关节疼痛之间存在密切关联。在疼痛较重一侧的关节中，46%存在积液；在疼痛较轻一侧的关节中，13%存在积液。
结果表明，颞下颌关节积液主要发生于存在盘移位的关节中，且与关节疼痛密切相关。
