MRI诊断半月板损伤类型的对比研究  被引量:10

MR imaging features of knee meniscus injury of different types

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作  者:段小军[1] 杨柳[1] 文亚名[1] 戴刚[1] 陈光兴[1] 郭林[1] 王晓宇[1] 

机构地区:[1]第三军医大学西南医院关节外科中心,重庆400038

出  处:《第三军医大学学报》2008年第15期1414-1416,共3页Journal of Third Military Medical University

摘  要:目的在对比性研究半月板损伤核磁共振(MRI)检查和关节镜探查的基础上,研究半月板不同损伤形态的MRI表现。方法对2006-10-01至2007-03-31入院拟行关节镜手术的患者,在术前常规行MRI检查,由高年资医师独立阅片,并预测是否存在半月板损伤及其损伤形态,另由主任医师行关节镜探查术所见半月板损伤为诊断金标准,统计MRI诊断的准确性。结果本组共纳入268例患者的288个膝关节,MRI检查疑诊半月板损伤269膝,经关节镜探查术证实半月板损伤268膝。MRI检查对半月板损伤诊断的敏感度为98.5%,特异度为84.2%,准确度为97.6%。尤其是在半月板桶柄样损伤方面敏感度较高,但对半月板小于1cm的纵行撕裂和半月板白区损伤的诊断仍存在一定困难。结论准确认识内、外侧半月板损伤后MRI的表现,可以显著提高术前半月板损伤诊断的准确性,从而有利于完善手术方式和评估预后。Objective Taking arthroscopic diagnosis of meniscus injury as gold standard, to identify the different types of meniscus injury by MR imaging. Methods All patients who would receive arthroscopic surgery for meniscus injury or cruciate ligament injury underwent MRI in our unit from Oct. 2006 to Mar, 2007. MR diagnosis of meniscus injury was evaluated by the criteria of Crues et al, then verified by arthroscopic diag- nosis. Results Totally 268 patients and 288 knees were included. A total of 269 knees of meniscus injury were described by MR diagnosis and 268 knees of meniscus injury were proven by arthroscopy. The sensitivity, specificity and accuracy of MR diagnosis of meniscus injury respectively were 98.5% , 84.2% and 97.6%. The signal described as grade Ⅲ in the menisci was a reliable sign of complete meniscal tears. Conclusion MR imaging is reliable, highly accurate and noninvasive diagnostic technique for meniscus injury. It is a very important examination before arthroscopy for consummate surgery scheme and prognosis.

关 键 词:半月板 磁共振成像 诊断 损伤 膝关节 

分 类 号:R684.04[医药卫生—骨科学] R816.8[医药卫生—外科学]

 

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