Furnstahl P, Schweizer A, Nagy L, Szekely G, Harders M
Computer Vision Laboratory, ETH Zurich, Zurich, Switzerland.
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:7168-71. doi: 10.1109/IEMBS.2009.5334629.
Computer-based simulations support surgeons in preoperative planning of osteotomy and assessing the improvement of the forearm motion. To this end, an in-silico model of patient-specific forearm kinematics is required. In this paper we introduce a motion model of the forearm which is based on a patient's joint morphology, the form and shape of the joints. The morphology of the articulations is represented by 3-dimensional splines. In this way the gliding motion of the articulations is expressed analytically in a closed-form. Our algorithm was designed to work with available clinical planning data and requires minimal user interaction. This allows an integration in computer-aided planning systems that are operated by surgeons. The accuracy of the simulation results is verified via cadaver experiments.
基于计算机的模拟可辅助外科医生进行截骨术前规划，并评估前臂运动的改善情况。为此，需要一个针对患者的前臂运动学计算机模型。在本文中，我们介绍了一种基于患者关节形态（即关节的形状和外形）的前臂运动模型。关节的形态由三维样条表示。通过这种方式，关节的滑动运动以解析形式的封闭解表示。我们的算法设计为可处理现有的临床规划数据，且只需最少的用户交互。这使得该算法能够集成到外科医生操作的计算机辅助规划系统中。模拟结果的准确性通过尸体实验进行验证。
