西北国防医学杂志2017，Vol.38Issue(4)：232-235,4.DOI:10.16021/j.cnki.1007-8622.2017.04.006
板股韧带附着区半月板真、假性撕裂的MRI鉴别诊断
MRI differential diagnosis of real and pseudo-tears of lateral meniscus of the meniscofemoral ligament attachment region
刘华亮 1李辉 1岳勇1
作者信息
- 1. 北京顺义区医院放射科,北京 101300
- 折叠
摘要
Abstract
Objective:To discuss MRI features and main points of differential diagnosis of real and pseudo-tears of posterior horn of the lateral meniscus (PHLM) of the meniscofemoral ligament(MFL) attachment region.Methods:Seventy patients with PHLM tears and 70 patients with anterior cruciate ligament tears but without PHLM tears confirmed by arthroscopy were analyzed retrospectively.The number of consecutive slices displaying longitudinal increased signal in sagittal images and the length in axial images were evaluated.The one-way analysis of variance,t test and x2 test curve were used to analyze diagnostic value of different MRI findings.Results:Longitudinal line with abnormal increased signal (pseudotear) was found in 88.6％ (62/70) normal insertion site of MFLs.In sagittal images,longitudinal linear high signal was shown in (5.9± 1.1) slices in knees of real tears,The axial images showed that the length of increased signal line in the outer of PHLM was (12.8±5.3) mm in patients with real tears,which was longer than pseudo-tear groups with length of (6.5 ± 1.7) mm (P ＜ 0.01).The continuous-line sign zip sign and zip sign were found in 71.4％ (50/70),84.3％ (59/70) in knees of real tears,which were more than 11.4％(8/70),8.6％(6/70) in pseudo-tear groups (P＜0.01).Both signs were found in 47.1％ (33/70) in knees of real tears,which were more than 2.9 ％ (2/70) in pseudo-tear groups (P ＜0.01).Conclusion:The continuous-line sign and are characteristic findings of PHLM tears at the insertion site of MFL attachment,which are valuable for differential diagnosis with pseudo-tears at the insertion site of MFL.关键词
磁共振成像/胫骨/韧带/创伤和损伤Key words
MRI/tibial/ligaments/wounds and injuries分类
医药卫生引用本文复制引用
刘华亮,李辉,岳勇..板股韧带附着区半月板真、假性撕裂的MRI鉴别诊断[J].西北国防医学杂志,2017,38(4):232-235,4.
