Measuring 3D growth plate shape: Methodology and application to cam morphology.
Measuring 3D growth plate shape: Methodology and application to cam morphology.
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DOI：
10.1002/jor.24972
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发表时间：
2021-11
期刊：
影响因子：
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通讯作者：
Shefelbine SJ
中科院分区：
文献类型：
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作者：
Horenstein RE;Meslier Q;Spada JA;Halverstadt A;Lewis CL;Gimpel M;Birchall R;Wedatilake T;Fernquest S;Palmer A;Glyn-Jones S;Shefelbine SJ
目前使用2D方法测量对应于凸轮形态的骨骺变化。这些方法受到股骨颈轴和股骨头中心定义的限制，这些定义取决于X线摄影视图平面。为了解决这些局限性，我们开发了使用MRI扫描分析连续生长板形状的3D方法。这些新方法依赖于股骨颈轴和股骨头中心的单一定义，这两个定义都不依赖于X线摄影平面视图，并允许分析生长板表面上的生长板形状（使用统计参数映射进行）。使用我们的3D方法，我们分析了9-16岁凸轮形态风险男性及其娱乐活动同龄人（n=17/队列）股骨头中生长板的位置（相对于与股骨头相切的平面）和生长板的曲率（相对于通过生长板中心的平面）。这两个测量提供了一个途径，分别分析这些变量在整体生长板形状的影响。我们发现，随着年龄的增长，生长板形状的差异，娱乐活跃的青少年，但没有发现风险和娱乐青少年之间的差异。
Physeal changes corresponding to cam morphology are currently measured using 2D methods. These methods are limited by definitions of the femoral neck axis and head center that are dependent on the radiographic plane of view. To address these limitations, we developed 3D methods for analyzing continuous growth plate shape using MRI scans. These new methods rely on a single definition of the femoral neck axis and head center that are both nondependent on the radiographic plane of view and allow for analysis of growth plate shape across the growth plate surface (performed using statistical parametric mapping). Using our 3D method, we analyzed the position of the growth plate in the femoral head (relative to a plane tangent to the femoral head) and the curvature of the growth plate (relative to a plane through the center of the growth plate) in in 9–16 year old males at-risk for cam morphology and their recreationally active peers (n=17/cohort). These two measurements provide an avenue to separately analyze the effects of these variables in the overall growth plate shape. We detected differences in growth plate shape with age in recreationally active adolescents but did not detect differences between at-risk and recreationally adolescents.