后交叉韧带撕脱性骨折多层螺旋CT影像表现与损伤机制的研究  

The relativity between multi-slice CT findings and mechanism of posterior cruciate ligament avulsion fracture injury

作　　者：陶鑫[1] 蒋炜[1] 闫俊[1] 赵志梅[2] 苏斌 

机构地区：[1]上海市江湾医院,200439 [2]延边大学医学院附属延边医院 [3]河北省承德钢铁有限公司职工医院

出　　处：《实用医技杂志》2012年第12期1250-1252,共3页Journal of Practical Medical Techniques

摘　　要：目的探讨多层螺旋CT(MSCT)对后交叉韧带撕脱性骨折的诊断价值和优势。方法收集15例经手术和临床证实的后交叉韧带撕脱性骨折患者,全部行膝关节X线片和MSCT检查,将CT扫描原始数据传入工作站,进行多平面重建和三维重建,观察骨折及韧带损伤情况,分析受伤机制与骨折影像表现的相关性。结果 15例后交叉韧带撕脱性骨折MSCT全部作出正确诊断,敏感性100%,其多平面重建图像能够立体、详细显示骨折部位、程度,从而提高骨折分型准确性,MSCT多平面重建图像能够显示后交叉韧带损伤后增粗、短缩、密度减低和后交叉韧带(PCL)角增大等征象,可以对韧带撕裂做出诊断。结论 MSCT全面提供后交叉韧带撕脱性骨折的伤情信息,为临床制定治疗方案和手术计划提供客观依据,在临床上有较高应用价值。Objective To evaluate multi-slice CT（MSCT） findings and diagnostic value in posterior cruciate ligament（PCL） avulsion fracture.Methods Fifteen PCL cases avulsion fracture obtained were examined respectively by X-ray and MSCT.All primary data of CT axial images were transferred to workstation and post-processed with multiple planar reformation and 3D reconstruction.To study MSCT findings of PCL avulsion fracture and PCL tear and analyze the relativity between mechanism of injury and MSCT findings of PCL avulsion fracture.Results In 15 cases of PCL avulsion fracture MSCT make the all correct diagnosis.The sensitivity of MSCT diagnosis was 100%.MSCT multi-planar recons-truction images could visually and detailed display the fracture site and bone separating degree.So that,it could improve fracture classification accuracy.MSCT multi-planar reconstruction images could display the injured PCL thickening,shortening,low density and the increase of PCL angle features and make a diagnosis of ligament tear.Conclusion MSCT could provides the comprehensive information of PCL avulsion fracture,which information was the objective basis for clinical treatment and operation plan,and has important value in clinical application.

关 键 词：膝关节 后交叉韧带 骨折 体层摄影术 X线计算机 相关性 

分 类 号：R687.3[医药卫生—骨科学]