膝关节半月板放射状撕裂的磁共振征象分析  

MRI Scan Characteristic Signs of the Radial Meniscal Tears

作　　者：靳宏辉[1] 聂国军[2] 张臣海[1] 李燕雏[3] JIN Hong-hui;NIE Guo-jun;ZHANG Cheng-hai(Department of Radiology,Bayi Orthopaedic Hospital of Chengdu Military Area Command, Chengdu 610011,Sichuan Province, China)

机构地区：[1]成都军区八一骨科医院放射科,四川成都610011 [2]成都军区机关第一门诊部放射科,四川成都610011 [3]四川大学附属华西医院呼吸科,四川成都610066

出　　处：《中国CT和MRI杂志》2019年第7期144-146,152,共4页Chinese Journal of CT and MRI

摘　　要：目的探讨半月板放射状撕裂的MR表现。方法回顾分析27例经关节镜确诊的半月板放射状撕裂的MRI征象,所有患者术前均行MRI检查。结果 27例中17例(63.0%)出现典型的裂隙征及裂隙行走征,12例(44.4%)出现半月板分离征,8例(29.6%)出现半月板消失征,4例(14.8%)出现三角截断征,1例(3.7%)显示为水平撕裂,1例(3.7%)MRI未见异常信号。结论半月板放射状撕裂多发生于外侧半月板的体部及体部前角交界区,裂隙征及裂隙行走征阳性率最高,联合多种征象可以极大提高诊断准确率。Objective To study the MRI appearance of radial tear of meniscus. Methods Twenty-seven cases of radial tear of meniscus which were confirmed by arthroscopy were analyzed by MRI appearance. All patients were received MRI examination before operation. Results Twenty-seven cases(63.0%) of radial tears had typical fissure symptoms and crevicular walking signs. Twelve cases(44.4%) showed meniscal dissection, and eight cases(29.6%) showed disappearance of meniscus, and four cases(14.8%) showed a triangular truncation sign, and one case(3.7%) showed horizontal tear, and one case(3.7%)did not reflect abnormal MRI signal. Conclusion The most frequent location of radial meniscus tear was the midbody of lateral meniscus followed by the boundary of anterior horn and midbody of the lateral meniscus. The positive rate of cleft sign and marching cleft sign was the highest. Combined with multiple signs can greatly improve the diagnostic accuracy.

关 键 词：撕裂伤 胫骨 半月板 磁共振成像 

分 类 号：R322.72[医药卫生—人体解剖和组织胚胎学]