中华口腔医学杂志
中華口腔醫學雜誌
중화구강의학잡지
Chinese Journal of Stomatology
2010年
1期
2-5
,共4页
骨折%下颌骨髁状突%颞下颌关节盘
骨摺%下頜骨髁狀突%顳下頜關節盤
골절%하합골과상돌%섭하합관절반
Fractures,bone%Mandibular condyle%Temporomandibular joint disk
目的 通过CT和MRI检查,研究髁突矢状骨折后骨折移位和关节盘移位的相关性.方法 对26例(41侧)髁突矢状骨折CT检查,将骨折分为:裂隙型、移位型和脱位型.根据MRI检查结果将关节盘的移位程度分为A型移位、B型移位;按照异常颓后附着的形态分为拉长型和断裂型.19例(32侧)同时进行CT和MRI检查.结果 41侧髁突矢状骨折的CT结果显示:裂隙型5侧(12%)、移位型18侧(44%)、脱位型18侧(44%).在MRI斜矢状位上,裂隙型骨折5侧,关节盘位于正常位置;移位型骨折15侧,其中A型移位3侧,B型移位12侧;脱位型骨折12侧,关节盘均为B型移位.关节盘颞后附着形态:裂隙型骨折中4侧(4/5)正常形态;移位型骨折中14侧(14/15)颞后附着拉长;12侧脱位型骨折均颞后附着断裂.髁突矢状骨折20侧(63%)显示关节上腔积液;裂隙型骨折中,1侧(1/5)关节上腔积液;移位型和脱位型骨折中,分别有13侧(13/15)和6侧(6/12)关节上腔积液.结论 髁突矢状骨折后,关节积液、关节盘移位和颞后附着形态与骨折块的移位程度有关.
目的 通過CT和MRI檢查,研究髁突矢狀骨摺後骨摺移位和關節盤移位的相關性.方法 對26例(41側)髁突矢狀骨摺CT檢查,將骨摺分為:裂隙型、移位型和脫位型.根據MRI檢查結果將關節盤的移位程度分為A型移位、B型移位;按照異常頹後附著的形態分為拉長型和斷裂型.19例(32側)同時進行CT和MRI檢查.結果 41側髁突矢狀骨摺的CT結果顯示:裂隙型5側(12%)、移位型18側(44%)、脫位型18側(44%).在MRI斜矢狀位上,裂隙型骨摺5側,關節盤位于正常位置;移位型骨摺15側,其中A型移位3側,B型移位12側;脫位型骨摺12側,關節盤均為B型移位.關節盤顳後附著形態:裂隙型骨摺中4側(4/5)正常形態;移位型骨摺中14側(14/15)顳後附著拉長;12側脫位型骨摺均顳後附著斷裂.髁突矢狀骨摺20側(63%)顯示關節上腔積液;裂隙型骨摺中,1側(1/5)關節上腔積液;移位型和脫位型骨摺中,分彆有13側(13/15)和6側(6/12)關節上腔積液.結論 髁突矢狀骨摺後,關節積液、關節盤移位和顳後附著形態與骨摺塊的移位程度有關.
목적 통과CT화MRI검사,연구과돌시상골절후골절이위화관절반이위적상관성.방법 대26례(41측)과돌시상골절CT검사,장골절분위:렬극형、이위형화탈위형.근거MRI검사결과장관절반적이위정도분위A형이위、B형이위;안조이상퇴후부착적형태분위랍장형화단렬형.19례(32측)동시진행CT화MRI검사.결과 41측과돌시상골절적CT결과현시:렬극형5측(12%)、이위형18측(44%)、탈위형18측(44%).재MRI사시상위상,렬극형골절5측,관절반위우정상위치;이위형골절15측,기중A형이위3측,B형이위12측;탈위형골절12측,관절반균위B형이위.관절반섭후부착형태:렬극형골절중4측(4/5)정상형태;이위형골절중14측(14/15)섭후부착랍장;12측탈위형골절균섭후부착단렬.과돌시상골절20측(63%)현시관절상강적액;렬극형골절중,1측(1/5)관절상강적액;이위형화탈위형골절중,분별유13측(13/15)화6측(6/12)관절상강적액.결론 과돌시상골절후,관절적액、관절반이위화섭후부착형태여골절괴적이위정도유관.
Objective To investigate the relationship between fractured fragment and joint disc displacement after sagittal fracture of mandibular condyle(SFMC).Methods based on CT examination,SFMC were classified into fissue,displacement and dislocation type.Based on oblique sagittal MRI examination,the displacement of joint disc was grouped into type A and type B.Abnormal superiorposterior attachment was classified into elongation and avulsion type.Results CT exmination were taken in 26 patients with 41 SFMC.There were 5 SFMC(12%)with fissue type,18 SFMC(44%)with displacement type and 18 SFMC(44%)with dislocation type.Both CT and MRI examination were taken in 19 patients with 32 SFMC.There were 27(84%)SFMC with disc displacement.Five SFMC with type fissue showed no signs of disc displacement.Among 15 SFMC with type displacement,there were 3 cases with type A disc displacement and 12 cases with type B disc displacement.All the dislocated SFMC(12 cases)were type B disc displacement.In term of superiorposterior attachment figures,4 cases(4/5)of type fissue SFMC showed normal.14 cases(14/15)of the displacement SFMC showed elongated and all cases with dislocated SFMC showed sign of avulsion.There were 20 cases(63%)showing superior joint effusion.There were 13 cases(13/15)with displaced SFMC and 6 cases with dislocated SFMC showing joint effusion.One case with fissue SFMC showed no sign of joint effusion.Conclusions Joint effusion,disc displacement and abnormal superiorposterior attachment were related to the displacement of condyle which was involved with SFMC.
