MRI of tendinopathy of the common extensor tendon and common flexor tendon and its application for injury classification
10.3760/cma.j.cn114798-20230319-00229
- VernacularTitle:肘关节屈肌总腱和伸肌总腱肌腱病的MRI表现及其分级初探
- Author:
Heng ZHANG
1
;
Zhanhua QIAN
;
Rongjie BAI
;
Huili ZHAN
;
Yaxiong LI
;
Songming WANG
;
Wei YE
Author Information
1. 首都医科大学附属北京积水潭医院放射科，北京100035
- Keywords:
Tendinopathy;
Elbow joint;
Magnetic resonance imaging;
Diagnosis
- From:
Chinese Journal of General Practitioners
2023;22(10):1038-1044
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the MRI findings of tendinopathy of the common extensor tendon (CET) and common flexor tendon (CFT) and to explore its application for injury classification.Methods:Sixty-two patients with elbow tendinopathy of CET and/or CFT who were examined in the Radiology Department of Beijing Jishuitan Hospital from August 2019 to April 2022 were enrolled as the case group, and 20 healthy subjects (40 elbows) were recruited as the control group. The clinical data of patients and MRI findings of elbow joint of all subjects were reviewed. The MRI of tendinopathy of CFT and CET were read by 2 senior radiologists independently, and the consistency was tested by the κ test. The MRI manifestations for injury classification were discussed. Results:The κ values of CFT, CET, medial collateral ligament complex and lateral collateral ligament complex were 0.645, 0.657, 0.615 and 0.653 respectively. MRI clearly showed the anatomical structure of CFT, CET and surrounding soft tissue. The CFT and CET of the elbow of 20 normal volunteers (40 sides) in the control group showed thin line or banded low signal in each MRI sequence, and the muscle fibers were continuous. In 27 patients with classification Ⅰ injury of CFT and/or CET of elbow joint, MRI showed thickening or thinning of tendons and increased signal intensity on fat suppression T2-weighted imaging. In 27 cases of classification Ⅱ injury, MRI showed that the fluid signal involved 20% to 80% of the tendon thickness. In 8 cases of classification Ⅲ injury, MRI showed that the fluid signal involved more than 80% of the tendon thickness. Conclusions:Tendinopathy of CFT and CET of elbow joint has its characteristic MRI manifestations, indicating that MRI can be used for the diagnosis of tendinopathy. In addition, MRI can also be used for the injury classification.
