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A New Spatial Kinematic Model of the Lower Leg Complex: A Preliminary Study

机译：小腿复合体的一种新的空间运动学模型：初步研究

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The importance of the human joint passive motion, i.e., the articulation motion in virtually unloaded conditions, for the study of human diarthrodial joints has been widely recognized. Recently, it has been shown that equivalent mechanisms make it possible to obtain physical-mathematical models that can replicate the articular passive motion well. These models also represent a useful tool for both pre-operation planning and prosthesis design. Although the human ankle joint has been extensively investigated, studies that examine the kinematic behaviour of the tibio-talar joint and also outline the motion of the fibula bone are still lacking. This paper focuses on the 3D kinematic model of the articulation that involves four bones: the tibia, fibula, talus and calcaneus. In particular, a new spatial equivalent mechanism with one degree of freedom is proposed for the passive motion simulation of this anatomical complex. The proposed mechanism is believed to play an important role for future developments of models of the entire human lower limb.
机译：人体关节被动运动，即在几乎没有负荷的情况下的关节运动对于人体双关节关节研究的重要性已得到广泛认可。近来，已经显示出等效的机制使得有可能获得可以很好地复制关节被动运动的物理数学模型。这些模型还代表了术前计划和假体设计的有用工具。尽管已对人体踝关节进行了广泛研究，但仍缺乏检查胫骨距骨关节运动学特征并概述腓骨骨骼运动的研究。本文着重于涉及四个骨骼的运动的3D运动学模型：胫骨，腓骨，距骨和跟骨。特别地，提出了一种具有一个自由度的新的空间等效机制，用于该解剖复合体的被动运动仿真。据信，所提出的机制对于整个人类下肢模型的未来发展起着重要作用。

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