膝关节骨挫伤及隐性骨折的MR检查

MR examination on knee joint bone contusions and occult fractures

目的:探讨骨挫伤及隐性骨折的MR检查方法和早期有效诊断,为临床早期治疗提供影像诊断依据。方法:2013年9月-2014年9月收治X线检查阴性同时伴外科临床表现者36例,对其进行膝关节MR常规序列扫描。结果:36例骨挫伤及隐性骨折,其中胫骨外侧平台挫伤31例,胫骨内侧平台损伤26例,股骨挫伤13例,腓骨小头挫伤5例,合并半月板损伤28例,合并韧带损伤20例,合并前交叉韧带损伤3例,合并后交叉韧带损伤1例。结论:骨挫伤及隐性骨折在MR的PDW SPAIR序列上有着共同的长T2信号(高信号)特点,能清楚显示损伤的部位及损伤程度,提供无创检查和及时明确的诊断,是一项有价值并值得推广的检查方法。

Objective:To investigate the MR inspection method and effective early diagnosis on bone contusions and occult fractures,in order to provided imaging diagnosis for clinical early treatment.Methods: 36 cases of X-ray negative at the same time with surgical clinical manifestation were selected from September 2013 to September 2014,with knee MR conventional sequences scanning.Results:36 cases of bone contusions and occult fractures,including 31 cases of lateral tibial plateau contusion,26 cases of medial tibial plateau injury,13 cases of femoral contusion,5 cases of fibular head contusion,28 cases with meniscus injury,20 cases with ligament injury,3 cases of combined anterior cruciate ligament injury,and 1 case of posterior cruciate ligament injury.Conclusion:Bone contusions and occult fractures had the same characteristics of long T2 signal(high signal) in PDW SPAIR sequences of MR.It can clearly show the location and extent of damage injury,and provide a noninvasive and timely clear diagnosis,so it is a valuable check method,and worthy of popularization.