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  • Title: In vivo talocrural and subtalar kinematics during the stance phase of walking in individuals with repetitive ankle sprains.
    Author: Fukano M, Fukubayashi T, Kumai T.
    Journal: J Biomech; 2020 Mar 05; 101():109651. PubMed ID: 32029243.
    Abstract:
    Ankle sprains may lead to chronic ankle instability and can progress to ankle osteoarthritis due to the abnormal kinematics after an ankle sprain. However, the characteristics of talocrural and subtalar joint kinematics in individuals with repetitive ankle sprains during locomotion is unclear. The purpose of this study was to quantify the differences of talocrural and subtalar joint kinematics between individuals with and without history of ankle sprains during the walking stance phase. Lateral fluoroscopic images from 10 participants with history of repetitive ankle sprains (AS group) and 8 healthy volunteers (Control group) were obtained between the time of heel contact and toe-off, and the three-dimensional bone orientations were determined using 3D-2D model-image registration techniques to compare the kinematic differences between the two groups. The AS group exhibited a greater talocrural internal rotation from heel contact to 60% of the stance phase than the control group. The results of this study indicate that ankles with repetitive sprains have different talocrural kinematics, and that greater talocrural internal rotation may become a factor in the development of ankle osteoarthritis.
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