| 周根泉,张悦萍,张贵祥,马金忠,汪守中,胡运胜,诸慧铭,陈丽萍.膝关节前交叉韧带撕裂的MRI诊断[J].中国医学影像技术,2002,18(11):1146~1149 |
| 膝关节前交叉韧带撕裂的MRI诊断 |
| MR Diagnosis of Tears of Anterior Cruciate Ligament of the Knee |
| 投稿时间：2002-05-17 |
| DOI： |
| 中文关键词: 膝关节 前交叉韧带撕裂 磁共振成像 |
| 英文关键词:Knee Anterior cruciate ligament tear Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的
研究膝关节前交叉韧带(ACL)撕裂的MRI表现及其诊断价值。方法 [HT]对32例
手术或关节镜证实的ACL撕裂和20例ACL正常病例的膝关节MRI资料进行分析,对ACL的形态特
征、走行、信号强度以及ACL撕裂的伴随征象均作了观察与分析,并判断有无ACL撕裂。
[HTH]结果 [HT]MRI诊断ACL完全性撕裂的敏感性、特异性和准确性分别为92%,95%和93%。
MRI诊断ACL部分性撕裂与手术
、关节镜完全符合4例,1例诊断为完全性撕裂,2例假阴性。ACL撕裂的伴随征象主要有胫骨
平台骨折,骨挫伤,半月板、侧副韧带损伤,PCL曲度异常,胫骨前移或外侧半月板后角后
移等。[HTH]结论 [HT]MRI诊断急性完全性ACL撕裂的准确性均较高,对于慢性或
部分性撕裂,其诊断准确性相对较低。 |
| 英文摘要: |
| Objective To investigate the MR findings of anterior cruciate ligament (ACL) tears and the
value of MRI in diagnosis of ACL tears. Methods MR images of 3
2 patients with ACL tears and 20 patients with intact ACL proved surgically or ar
throscopically wer
e reviewed retrospectively.The morphological features, course and signal intens
ity of ACL, and associated signs of ACL tears were noted and analy
zed. Results The sensitivity, specificity and accuracy of MR diagnosis
of complete ACL tears were 92%, 95% and 93% respectively. Four of seven patients with
partial ACL tears manifested partial disruption or bowing of ACL with increased
signal intensity within the ligament, while the other one appeared to be complete ACL disruption
and two appeared to be normal appearance. Four of seven patients were diagnosed as par
tial ACL tears correctly with MR imaging, while the othe one was diagnosed as complete ACL tear
, and two false-negative. Associated signs of ACL tears mainly included fracture
s of tibial plateaus, bone bruises, injuries of menisci and collateral ligaments
, abnormal curvature of PCL, anterior translation of the tibia and posterior dis
placement of the lateral meniscus, etc. Conclusion The accura
cy of MRI for diagnosis of acute complete ACL tears were high but relatively low
for chronic or partial ACL tears. |
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