Three-dimensional assessment of impingement risk in geometrically parameterised hips compared with clinical measures.
Three-dimensional assessment of impingement risk in geometrically parameterised hips compared with clinical measures.
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DOI：
10.1002/cnm.2867
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发表时间：
2017-11
影响因子：
2.1
通讯作者：
Jones AC
中科院分区：
文献类型：
--
作者：
Cooper RJ;Mengoni M;Groves D;Williams S;Bankes MJK;Robinson P;Jones AC
骨形态异常是髋关节软组织损伤和骨关节炎终身风险增加的一个因素。用于诊断髋关节畸形（如股骨颈凸轮畸形）的标准二维影像学测量无法捕获完整的关节几何结构，也不能指示症状性损伤。在本研究中，开发了一个三维几何参数化系统，以捕获临床诊断为凸轮畸形的受试者股骨和髋臼的关键变化。对20名患者（10名女性和10名男性）的计算机断层扫描进行参数化。凸轮畸形的新的定量措施，并用于评估男性和女性之间的形态畸形的差异。参数化表面匹配更详细的分段髋骨几何形状，拟合误差较低。定量严重度测量捕获凸轮的尺寸和位置，并区分凸轮和对照股骨。测量的精度足以识别仅使用二维成像无法观察到的受试者之间的差异。特别是，凸轮被发现是更优越地位于男性比女性。除了提供一种更清晰地区分受试者的方法外，新的几何髋关节参数化还有助于灵活快速地生成一系列逼真的髋关节几何形状，包括凸轮。当与材料特性模型相结合时，这些分层凸轮形状可用于进一步评估冲击条件下几何变化的影响。
Abnormal bony morphology is a factor implicated in hip joint soft tissue damage and an increased lifetime risk of osteoarthritis. Standard 2‐dimensional radiographic measurements for diagnosis of hip deformities, such as cam deformities on the femoral neck, do not capture the full joint geometry and are not indicative of symptomatic damage. In this study, a 3‐dimensional geometric parameterisation system was developed to capture key variations in the femur and acetabulum of subjects with clinically diagnosed cam deformity. The parameterisation was performed for computed tomography scans of 20 patients (10 female and 10 male). Novel quantitative measures of cam deformity were taken and used to assess differences in morphological deformities between males and females. The parametric surfaces matched the more detailed, segmented hip bone geometry with low fitting error. The quantitative severity measures captured both the size and the position of cams and distinguished between cam and control femurs. The precision of the measures was sufficient to identify differences between subjects that could not be seen with the sole use of 2‐dimensional imaging. In particular, cams were found to be more superiorly located in males than in females. As well as providing a means to distinguish between subjects more clearly, the new geometric hip parameterisation facilitates the flexible and rapid generation of a range of realistic hip geometries including cams. When combined with material property models, these stratified cam shapes can be used for further assessment of the effect of the geometric variation under impingement conditions.
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影响因子：
5
作者：
Omoumi, Patrick;Thiery, Cecile;Vande Berg, Bruno C.
通讯作者：
Vande Berg, Bruno C.
影响因子：
4.6
作者：
Laborie, L. B.;Lehmann, T. G.;Rosendahl, K.
通讯作者：
Rosendahl, K.
DOI：
10.1097/01.blo.0000096804.78689.c2
发表时间：
2003-12-01
影响因子：
4.2
作者：
Ganz, R;Parvizi, J;Siebenrock, KA
通讯作者：
Siebenrock, KA
影响因子：
2.1
作者：
Ergen, Fatma Bilge;Vudali, Sureyya;Aydingoz, Ustun
通讯作者：
Aydingoz, Ustun
影响因子：
4.8
作者：
Khanna, Vickas;Caragianis, Anthony;Beaule, Paul E.
通讯作者：
Beaule, Paul E.