【摘要】 目的探讨多层螺旋CT在膝关节外伤中前后交叉韧带与半月板损伤的诊断价值。方法回顾性分析45例经膝关节镜证实的前后交叉韧带和半月板损伤的多层螺旋CT直接征象和间接征象。结果前后交叉韧带损伤的直接征象表现为韧带断裂、密度欠均匀,韧带附着点撕脱性骨折,间接征象表现为韧带肿胀,周围脂肪间隙模糊欠清;半月板损伤的MDCT直接征象是形态失常、密度不均匀及裂隙征,间接征象是膝关节滑膜增厚、关节囊关节腔内积液、损伤的半月板周围软组织肿胀等。45例患者中,MDCT显示前交叉韧带损伤14例(14/20),后交叉韧带损伤11例(11/15),内侧半月板损伤8个(8/12),外侧半月板损伤12个(12/20),交叉韧带与半月板同时损伤10例,韧带附着点及胫骨平台骨折18例。结论多层螺旋CT在膝关节外伤中的前后交叉韧带及半月板的损伤有一定的诊断价值,可为缺少磁共振设备的基层医院提供一有用的检查方法。更多还原

【Abstract】 Objective To evaluate the diagnotic value of multi-slice spiral CT(MDCT) in anterior and posterior cruciate ligament injury and meniscus injury.Methods Retrospective analysis of the CT direct signs and indirect signs in 45 cases diagnosed with anterior and posterior cruciate ligament injury and meniscus injury confirmed by knee arthroscopic was conducted.Results MDCT findings of the direct signs of the anterior and posterior cruciate ligament injury included the ligament rupture,less uniform density,ligament attachment points avulsion fracture.Indirect signs included ligament swelling,fuzzy around the fat space less clear;MDCT findings of the direct signs of the meniscus injury included morphological disorders,uneven density and broken sign.Indirect signs included thickening of the synovium,joint capsule effusion,soft tissue swelling of the injuryed meniscus.In 45 patients,MDCT showed the anterior cruciate ligament injury in 14 cases(14/20),posterior cruciate ligament injury in 11 cases(11/15),medial meniscus injury in 8 cases(8/12),lateral meniscus injury in 12(12/20),cruciate ligament and meniscus injury in 10 cases,ligament attachment points and tibial plateau fracture in 18 cases.Conclusion MDCT examination is helpful in diagnosis of anterior and posterior cruciate ligament injury and meniscus injury,providing a useful check for the absence of magnetic resonance equipment for primary hospitals.更多还原