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Intrinsic Kinematics of the Tibiotalar and Subtalar Joints during Human Walking based on dynamic Biplanar Fluoroscopy

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Journal of Bionic Engineering 2023年第5期20卷 2059-2068页

作者： Shengli Wang Zhihui Qian Xiangyu Liu Guangsheng Song Kunyang Wang Jianan Wu Jing Liu Lei Ren Luquan Ren Key Laboratory of Bionic Engineering Jilin UniversityChangchun130022China School of Mechanical Aerospace and Civil EngineeringUniversity of ManchesterManchesterM139PLUK

Accurate knowledge of the kinematics of the in vivo Ankle Joint Complex(AJC)is critical for understanding the biomechanical function of the foot and assessing postoperative rehabilitation of ankle disorders,as well as an essential guide to the design of ankle–foot assistant ***,detailed analysis of the continuous 3D motion of the tibiotalar and subtalar joints during normal walking throughout the stance phase is still considered to be *** this study,dynamic radiographs of the hindfoot were acquired from eight subjects during normal *** motions with six Degrees of Freedom(DOF)and the coupled patterns of the two joints were *** was found that the movements of the two joints were mostly in opposite directions(including rotation and translation),mainly in the early and late *** were significant differences in the Range of Motion(ROM)in Dorsiflexion/Plantarflexion(D/P),Inversion/Eversion(In/Ev),and Anterior–Posterior(AP)and Medial–Lateral(ML)translation of the tibiotalar and subtalar joints(p<0.05).Plantarflexion of the tibiotalar joint was coupled with eversion and posterior translation of the subtalar joint during the impact phase(R^(2)=0.87 and 0.86,respectively),and plantarflexion of the tibiotalar joint was coupled with inversion and anterior translation of the subtalar joint during the push-off phase(R^(2)=0.93 and 0.75,respectively).This coordinated coupled motion of the two joints may be a manifestation of the AJC to move flexibly while bearing weight and still have stability.

关键词： dynamic biplane radiography Tibiotalar joint Subtalar joint In vivo kinematics Coupled motion Bionic design

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