MRI对盘状半月板损伤的诊断价值  

THE DIAGNOSTIC VALUE OF MRI ON THE INJURY OF DISCOID MENISCUS

作　　者：吴琼[1] 牛广明[1] 韩晓东[1] 何金龙[1] 

机构地区：[1]内蒙古医科大学附属医院MRI室,内蒙古呼和浩特010050

出　　处：《内蒙古医科大学学报》2014年第2期85-89,共5页Journal of Inner Mongolia Medical University

基　　金：内蒙古自然科学基金(2012ms1184)

摘　　要：目的：探讨MRI对膝关节盘状半月板损伤的诊断价值,从而提高盘状半月板MRI诊断准确率。方法：收集36例行MRI检查并经关节镜或手术证实为盘状半月板的病人,对MRI冠状位、矢状位半月板进行测量分析,记录半月板后角厚度、板/面比率等数据,统计盘状半月板的发生率及合并损伤率,MRI与手术或关节镜诊断符合率,盘状半月板各型发生率等。结果：36例盘状半月板,均为外侧盘状半月板,未发现内侧盘状半月板,其中25例合并盘状半月板损伤,损伤发生率为89.29%（25/36）；其中板型21例、楔形12例、肥角型3例,诊断符合率分别为90.47%（19/21）、75.00%（9/12）、66.67%（2/3）；板/面比率范围为38%--92%。结论：盘状半月板多见于外侧半月板；盘状半月板特征性的MR表现是盘状半月板明显较正常半月板厚、大, MRI检查易于诊断；盘状半月板常并发半月板变性或撕裂。Objective：To explore the diagnostic value of MRI on the injury of knee discoid meniscus,so that improve diagnostic accuracy of MRI to discoid meniscus. Methods：36 cases of patients with discoid meniscus who were confirmed by arthroscopy or surgery and performed MRI examination were collected. Meniscus in the coronal and sagittal of MRI was measured and analyzed. The data of the thickness posterior horn of meniscus in sagittal,the ratios of board and surface were re-corded. The incidence rate and combined injury rate of Medial and lateral discoid meniscus, the diagnostic accordance rate of MRI and arthroscopic or surgery and incidence of various types of discoid meniscus were calculated. Results：In 36 cases of discoid meniscus, all cases were lateral discoid meniscus, none discoid meniscus has been found. 25 cases with discoid meniscus injury, injury incidence was 89. 29%（25/36）. The plate was 21 cases,the wedge was 12 cases,fat-horn was 3 cases,the diagnosis rates was 90. 47%（19/21）,75. 00%（9/12）,66. 67%（2/3） respectively. The range of board and surface ratio was 38% ~92%. Conclusion：Discoid meniscus is more common in the lateral meniscus. Discoid meniscus is significantly higher and thick than normal meniscus in MR, and MRI examination is easier to diagnose. Discoid meniscus often complicated degeneration or tear.

关 键 词：盘状半月板 诊断标准 

分 类 号：R445.2[医药卫生—影像医学与核医学]