MR多角度屈曲观察髌股关节软骨损伤

发布时间：2018-03-24 20:53

本文选题：磁共振成像　切入点：软骨疾病　出处：《中国医学影像技术》2017年02期

【摘要】：目的通过膝关节多角度屈曲MR扫描,观察膝关节炎髌股关节软骨损伤的位置,判断最容易引起髌股关节软骨损伤的运动角度,探讨膝关节的安全运动方式。方法对22例骨关节炎患者的膝关节分别在伸直位和被动屈曲0°、10°、20°、30°、40°、50°、60°的状态下进行快速自旋回波质子加权像加脂肪抑制序列(PD-TSE-FS)扫描,矢状位图像上观察髌股关节软骨损伤的位置。结果髌股关节软骨内T2WI信号异常4处,局限性软骨变薄20处,关节软骨局限性缺损12处。膝关节被动屈曲时,软骨损伤在30°~60°内均有对合情况,对合最多的角度为40°,在30°屈曲角度扫描中仅发现1例软骨损伤对合的病例。结论膝关节屈曲30°~60°时髌骨软骨与股骨滑车软骨损伤在对应面出现的频率最高。屈曲30°时髌骨软骨与股骨滑车软骨损伤在对应面出现的频率较低。
[Abstract]:Objective to observe the position of patellofemoral articular cartilage injury in knee joint by multi-angle flexion Mr scan, and to judge the movement angle of patellofemoral articular cartilage injury most likely to cause patellofemoral articular cartilage injury. Methods the knee joint of 22 patients with osteoarthritis was scanned with PD-TSE-FSS in extensional position and passive flexion (0 掳/ 10 掳/ 20 掳/ 30 掳/ 30 掳/ 30 掳/ 40 掳/ 50 掳/ 60 掳) with fast spin echo proton weighted imaging plus fat suppression sequence respectively. Results there were 4 abnormal T2WI signals in patellofemoral articular cartilage, 20 localized cartilage thinning, 12 localized defects of articular cartilage on sagittal images. Cartilage injury had involution within 30 掳or 60 掳. The most involutive angle was 40 掳. Only one case of articular cartilage injury was found in 30 掳flexion angle scan. Conclusion the frequency of patellar cartilage and femoral trochlear cartilage injury is the highest when knee flexion is 30 掳or 60 掳. The frequency of patellar cartilage injury and femoral trochlear cartilage injury was lower at 30 掳.
【作者单位】：河北医科大学第三医院放射科河北省骨科生物力学重点实验室;河南省骨科医院放射科;白求恩医务士官学校影像教研室;
【分类号】：R681.3;;R445.2

【相似文献】