急性髌骨一过性外侧脱位的MRI诊断  

MRI Diagnosis of Acute Transient Lateral Patella Dislocation

作　　者：王圣乾 丁长青 丁爱兰 王雪璐 罗慧 Wang Shengqian;Ding Changqing;Ding Ailan;Wang Xuelu;Luo Hui(Department of Imaging,Feng County Hospital Affiliated to Nantong University(Feng County People's Hospital Jiangsu Province),Feng County,Jiangsu 221700)

机构地区：[1]南通大学附属丰县医院(江苏省丰县人民医院)影像科,江苏丰县221700

出　　处：《现代医用影像学》2022年第1期27-29,54,共4页Modern Medical Imageology

基　　金：2014年江苏省卫生厅医学科研立项课题,项目编号:YG201419。

摘　　要：目的:探讨MRI在急性髌骨一过性外侧脱位(TLPD)中的诊断优势。方法:回顾性分析2018年1月至2020年10月50例TLPD患者的影像学资料,重点分析其MRI表现特征及与X线平片比较优势。结果:TLPD在MRI上以股骨外侧髁与髌骨内侧骨髓水肿及内侧髌股韧带不同程度损伤为特征,多伴髌骨半脱位及外倾(本组84%)、关节腔(本组100%)及髌周滑囊积液(本组100%),可伴骨软骨损伤(34%)。本组MRI诊断率(100%)明显高于X线(22%),差异具有统计学意义(χ^(2)=63.9344,P<0.01)。结论:MRI易于显示TLPD的病变特征,可作为首选的影像学成像手段。Objective:To explore the diagnostic advantages of MRI in acute transient lateral patella dislocation(TLPD).Methods:The imaging data of 50 patients diagnosed as TLPD from January 2018 to October 2020 were retrospectively analyzed.The MRI features and comparative advantages from X-ray plain radiographs were explored.Results:On MRI,TLPD was characterized by edema of the lateral femoral condyle and the inner patella and injury of the medial patellofemoral ligament at different degrees.It was mostly accompanied by patellar supracrustal dislocation and camber(n=84%),effusion of articular cavity(n=100%)and peripatellar bursa(n=100%),and partly with osteochondral lesion(n=34%).The diagnostic rate of MRI in this group(100%)was significantly higher than that in X-ray(22%),and the difference was statistically significant(χ^(2)=63.9344,P<0.01).Conclusion:MRI is easy to display the pathological features of TLPD and can be used as the first choice imaging method.

关 键 词：膝关节 髌骨脱位 骨挫伤 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R684.7[医药卫生—诊断学]