抄録
Rotation movement of the forearm was established by the binding of various ligaments that connects the ulna and radius. It becomes unstable when the ligament is damaged. It would have a significant impact on activities of daily living that the ligaments were damaged and its functions were limited. The objective of this study was to simulate the deformity of the ligaments involved in human forearm rotation using the finite element method. We developed a three-dimensional FEM arm model comprising bone and ligament components. The rotation movement of the forearm was reproduced by turning a radius model. From the results, the stress distribution and deformity that occur in ligament models were analyzed.