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논문 기본 정보

자료유형
학술저널
저자정보
조영아 (이화여자대학교 의과대학 진단방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제40권 제1호
발행연도
1999.1
수록면
7 - 13 (7page)

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초록· 키워드

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Purpose : To evaluate the correlation between findings of dynamic magnetic resonance (MR) imaging of temporomandibular joint (TMJ) and clinical findings in patients with internal derangement of the TMJ. Materials and Methods : Dynamic MR images of 130 joints of 65 patients (17 men and 48 women aged 14 to 74 ; mean age, 34)with internal derangement of the TMJ were obtained using a 1.5-T MR imaging system. MR findings of anterior displacement, disc deformity and degenerative change were correlated with clinical findings including joint pain, clicking sound, crepitation and maximal mouth opening (MMO). Results : Among 62 joints with TMJ pain, 32 showed anterior displacement without reduction, 15 showed disc deformity and 19 showed degenerative change. Among 49 joints in which there was a clicking sound, 24, 8 and 12 joints, respectively, showed the above-mentioned findings, while in seven with crepitation, these same findings were evident in five, six and four joints, respectively. Bilateral and unilateral joint disorders were observed in 17 and five patients, respectively, among 22 with MMO less than 30mm and in 11 and 18 of 42 patients with MMO between 30mm and 60mm. Conclusion : On MR imaging, patients with MMO less than 30mm usually showed bilateral joint disorders and those with crepitation showed chronic change. This indicates that there is high association between clinical findings of internal derangement of TMJ and MR findings.

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