측두하악관절 자기공명영상에서의 삼출에 관한 연구
Effusion in magnetic resonance imaging of the temporomandibular joint
나경수,
소속 상세정보
나경수 ( ) - 부산대학교 치과대학 구강악안면방사선학교실
KMID : 0896020030330010001
Abstract
Purpose : The purpose of this study was to investigate t도 distribution and frequency of temporomandibular joint(TMJ) effusion in magnetic resonance (MR) images of patients with disc displacements.
Materials and Methods : On T2 weighted MR images of 148 TMJ effusion, defined as an amount of fluid that exceeded the pain and dysfunction, we assessed the cases showing TMJ effusion, defined as an amount of fluid that exceeded the maximum amount seen in a control group of asymptomatic volunteers. The amount of TMJ fluid was graded as: Ⅰ(none or minimal), Ⅱ (moderate), Ⅲ (marked), and Ⅳ (extensive), according to a standard set by a reference. Disc displacement categories were also recorded.
Results : Of the 148 TMJs examined in this study, 52 joints (35.1%) presented with joint effusion, 24 (16.2%) showing bilateral joint effusion, 38 joints showed upper joint space effusion, 3 showed lower join space effusion, and 11 showed both upper and lower joint space effusion. 96 joints (64.9%) had grade Ⅰ joint fluid, 27 (18.2%) grade Ⅱ, 15 (10.1%) grade Ⅲ, and 10 (6.8%) grade Ⅳ. 80.0% of the joints presenting with grade Ⅳ effusion showed disc displacement without reduction.
Conclusion : Joint effusion was found not only in upper, but also in lower joint spaces. The higher the effusion grade, the greater the frequency of disc displacement without reduction.
키워드
temporomandibular joint; internal derangement; joint effusion
원문 및 링크아웃 정보
등재저널 정보