European Society of Biomechanics SM Perren Award 2022: Standardized tibio-femoral implant loads and kinematics
European Society of Biomechanics SM Perren Award 2022: Standardized tibio-femoral implant loads and kinematics
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DOI：
10.1016/j.jbiomech.2022.111171
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发表时间：
2022-07-05
影响因子：
2.4
通讯作者：
Smith, Colin R.
中科院分区：
文献类型：
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作者：
Dreyer, Michael J.;Trepczynski, Adam;Smith, Colin R.
胫骨-股骨运动学和动力学知识对于全面了解膝关节生物力学、指导植入物设计和测试以及驱动和验证计算模型是必要的。2017年，CAMS-Knee公布了数据集，其中包含使用移动透视测量的体内同步植入物运动学，以及使用六名受试者的仪器化植入物测量的胫骨-股骨接触载荷。然而，到目前为止，从同一组受试者的关节水平上的测量获得的运动学和动力学的代表性总结还不存在。在这项研究中，我们提出了CAMS-Knee标准化受试者“Stan”，其参考数据包括胫骨-股骨运动学和所有六个受试者水平行走和下坡行走、楼梯下降、下蹲和坐到站到坐的加载场景。使用Bergmann和同事的保峰平均方法，我们推导出了一般高(CAMS-HIGH100)、峰值和极端负载的情景。在所调查的五个活动中，CAMS-HIGH100的轴向力在3022到3856 N(3.08-3.93体重)之间达到峰值。前后力大约低了十分之一。水平行走和下蹲时胫骨周围的轴力矩最大，峰值分别为9.4 Nm和10.5 Nm。在下蹲和坐着时，观察到胫骨内旋高达8.4，而步行活动大约是内旋的一半。CAMS-HIGH100的负荷与Bergmann和同事的负荷相当，但具有同步运动学的额外好处。斯坦的载荷比国际标准化组织14243磨损测试标准载荷高出+11%到+56%，而运动学表现出明显不同的曲线形状。除了原始的CAMS-Knee数据集，斯坦的数据可以在cams-kne.oreoload.com上获得。
Knowledge of both tibio-femoral kinematics and kinetics is necessary for fully understanding knee joint biomechanics, guiding implant design and testing, and driving and validating computational models. In 2017, the CAMS-Knee datasets were presented, containing synchronized in vivo implant kinematics measured using a moving fluoroscope and tibio-femoral contact loads measured using instrumented implants from six subjects. However, to date, no representative summary of kinematics and kinetics obtained from measurements at the joint level of the same cohort of subjects exists. In this study, we present the CAMS-Knee standardized subject "Stan ", whose reference data include tibio-femoral kinematics and loading scenarios from all six subjects for level and downhill walking, stair descent, squat and sit-to-stand-to-sit. Using the peak-preserving averaging method by Bergmann and co-workers, we derived scenarios for generally high (CAMS-HIGH100), peak, and extreme loading. The CAMS-HIGH100 axial forces reached peaks between 3022 and 3856 N (3.08-3.93 body weight) for the five investigated activities. Anterior-posterior forces were about a factor of ten lower. The axial moment around the tibia was highest for level walking and squatting with peaks of 9.4 Nm and 10.5 Nm acting externally. Internal tibial rotations of up to 8.4 were observed during squat and sitting, while the walking activities showed approximately half the internal rotation. The CAMS-HIGH100 loads were comparable to Bergmann and co-workers', but have the additional benefit of synchronized kinematics. Stan's loads are +11 to +56% higher than the ISO 14243 wear testing standard loads, while the kinematics exhibit markedly different curve shapes. Along with the original CAMS-Knee datasets, Stan's data can be requested at cams-knee.orthoload.com.