膝关节损伤的MRI诊断

目的探讨膝关节损伤的MRI表现及其临床应用价值。方法对50例经临床手术证实的膝关节损伤患者的MRI表现进行回顾性分析。结果半月板损伤25例,MRI表现为半月板内出现结节状、线状、放射状裂隙样异常高信号,累及或不累及半月板的关节面;前交叉韧带损伤15例,后交叉韧带损伤10例,内侧副韧带损伤12例,外侧副韧带损伤5例,表现为韧带的连续性存在、部分存在及完全撕裂,其内部出现局限性或弥漫性异常信号;隐匿性骨折及骨挫伤20例,表现为骨质局限性或弥漫性异常信号;关节积液、渗出40例,表现为关节腔内异常信号或关节囊肿胀。结论MRI对膝关节损伤的各种表现显示清楚,对临床有指导意义。

MRI Diagnosis For knee Joint Injury

Objective To discuss magnetic resonance imaging (MRI) features of knee joint injury and evaluate its clinical application value. Methods Fifty patients with knee joint injury confirmed by clinical operation were retrospectively analyzed and summarized through reviewing their MRI features. Results Meniscus injury in 25 cases displayed nodular, linear, radial fissure-shaped high intensity signal in the meniscus by MRI, which were in the facies articularis of meniscus or not. Anterior cruciate ligament injury was found in 15 cases, posterior cruciate ligament injury in 10 cases, and lateral collateral ligament injury in five cases. In these cases, MRI displayed total or partial interruption or no interruption in the injuried ligament, whose MRI showed localized or diffused abnomal signals. Cryptic fracture and bone contusion in 20 cases displayed localized or diffused abnomal signals in the bone. Joint effusion in 40 cases displayed abnomal signals or joint capsular swelling in the joint cavity.Conclusion MRI can clearly show various appearances of knee joint injury and have instructional significance for clinic.