Bruno Alexander G, Bouxsein Mary L, Anderson Dennis E
J Biomech Eng. 2015 Aug;137(8):081003. doi: 10.1115/1.4030408. Epub 2015 Jun 9.
We developed and validated a fully articulated model of the thoracolumbar spine in opensim that includes the individual vertebrae, ribs, and sternum. To ensure trunk muscles in the model accurately represent muscles in vivo, we used a novel approach to adjust muscle cross-sectional area (CSA) and position using computed tomography (CT) scans of the trunk sampled from a community-based cohort. Model predictions of vertebral compressive loading and trunk muscle tension were highly correlated to previous in vivo measures of intradiscal pressure (IDP), vertebral loading from telemeterized implants and trunk muscle myoelectric activity recorded by electromyography (EMG).
我们在OpenSim中开发并验证了一个胸腰椎的全关节模型,该模型包括单个椎体、肋骨和胸骨。为确保模型中的躯干肌肉能准确代表体内肌肉,我们采用了一种新颖的方法,利用从社区队列中采集的躯干计算机断层扫描(CT)图像来调整肌肉横截面积(CSA)和位置。该模型对椎体压缩负荷和躯干肌肉张力的预测与先前对椎间盘内压力(IDP)、遥测植入物测量的椎体负荷以及通过肌电图(EMG)记录的躯干肌肉肌电活动的体内测量结果高度相关。