MRI findings of chronic completely tear of the anterior cruciate ligament
- VernacularTitle:前交叉韧带陈旧性完全撕裂的MRI表现
- Author:
Anzhen WANG
1
;
Changqing DING
;
Dehai LIU
;
Huifang SUN
Author Information
1. 江苏省丰县人民医院影像科
- Keywords:
Knee joint;
Anterior cruciate ligament;
Ligament tear;
Magnetic resonance imaging
- From:
China Modern Doctor
2015;53(35):88-91
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the diagnostic value of MRI in chronic completely tear of the anterior cruciate lig-ament(ACL). Methods From January 2013 to September 2015 in our hospital,the clinic and MRI data of 20 cases with chronic completely tear of the ACL proved by arthroscopy. Results The diagnostic accuracy rate of MRI was 75%(15/20), and 25%(5/20) was misdiagnosed as partial tear.The MRI signs were: ACL ligament direction (n=20, 100%), abnormal ACL increased signal (14 cases, 70%), tibia forward (n=19, 95%), abnormal deeper lateral femoral notch or bone contusion or cartilage erosion(n=20, 100%), smaller bending angle index of posterior cruciate ligament(n=20, 100%), with the medial meniscus injury(n=18, 90%). MRI also clearly showed other lesions in the knee joint. Conclu-sion MRI has high diagnostic accuracy in chronic completely tear of the ACL, so which is worthy of application.
