Anterior and posterior cruciate ligaments at different patient ages: MR imaging findings
Anterior and posterior cruciate ligaments at different patient ages: MR imaging findings
复制标题
DOI：
10.1148/radiol.2473071097
复制
发表时间：
2008-06-01
期刊：
影响因子：
19.7
通讯作者：
Dardzinski, Bernard J.
中科院分区：
文献类型：
--
作者：
Kim, Hee Kyung;Laor, Tal;Dardzinski, Bernard J.
目的：回顾性汇编规范性数据的前交叉韧带（ACL）和后交叉韧带（PCL）在儿童和年轻adults.Materials和Methods：这符合健康保险责任法案的研究是由机构审查委员会批准。免除了患者知情同意的要求。在1.5和3.0 T下对168名女性和156名男性患者（年龄范围，1-20岁）进行膝关节MR成像检查（n = 324），并由两名盲态放射科医生分别对图像结果进行回顾性评价。一名放射科医生在两次会议上审查了所有图像两次，另一名放射科医生在一次会议上审查了一半图像的随机子集。不一致的评估以协商一致方式解决。测量ACL-胫骨矢状面和冠状面角、Blumensaat线ACL角、髁间顶倾斜角、ACL-胫骨止点、PCL角和水平分量与垂直分量比。评估这些值与患者年龄、患者性别和骨骺通畅性之间的相关性。线性和分数多项式回归模型被用来评估测量之间的关系。结果：ACL胫骨角度变得显着更大（P < .001），随着年龄的增长，在骨骼生长和接近成年值后，骨骺融合。Blumensaat线-ACL角在2岁后保持不变。随着年龄的增长，髁间顶角的倾斜度明显减小（P <0.001）。ACL-胫骨插入部位在胫骨前后径的前三分之一和中三分之一的交界处是恒定的，并且与年龄无关。随着年龄的增长，PCL角明显变大（P <0.001），与开放生长骨骺相比，儿童的PCL角已经融合。随着年龄的增长，PCL的水平分量与垂直分量的比值显著减小（P <0.001）。PCL的角度和形态学变化在整个骨骼成熟过程中具有年龄依赖性。(C)RSNA，2008年。
Purpose: To retrospectively compile normative data on the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL) in children and young adults.Materials and Methods: This HIPAA-compliant study was approved by the institutional review board. The requirement for informed patient consent was waived. Knee MR imaging examinations (n = 324) were performed in 168 female and 156 male patients (age range, 1-20 years) at 1.5 and 3.0 T, and the image findings were retrospectively evaluated by two blinded radiologists separately. One radiologist reviewed all images twice at two sessions, and the other reviewed a random subset of half the images during one session. Discordant assessments were resolved by consensus. The sagittal and coronal ACL-tibial angles, Blumensaat line ACL angle, angle of inclination of the intercondylar roof, ACL-tibial insertion site, and PCL angle and horizontal component-to-vertical component ratio were measured. The associations between these values and patient age, patient sex, and physeal patency were assessed. Linear and fractional polynomial regression models were used to evaluate the relationships between measurements.Results: ACL-tibial angles became significantly larger (P < .001) with increasing age during skeletal growth and approached adult values after physeal fusion. The Blumensaat line-ACL angle was constant after age 2 years. The inclination of intercondylar roof angle became significantly smaller (P < .001) with increasing age. The ACL-tibial insertion site was constant at the junction of the anterior and middle thirds of the tibial anteroposterior diameter and was not age dependent. The PCL angle became significantly larger (P < .001) with advancing age and in children who had fused as opposed to open physes. The horizontal component-to-vertical component PCL ratio became significantly smaller with advancing age (P < .001).Conclusion: During growth, angulation of the ACL is age dependent. The angle and morphologic changes of the PCL are age dependent throughout skeletal maturation. (C) RSNA, 2008.