par Innocenti, Bernardo ;Bori, Edoardo
Référence Journal of Orthopaedics, 22, page (463-472)
Publication Publié, 2020-11
Article révisé par les pairs
Résumé : The purpose of this study is to analyze the effects of TKA under-dimensioning during daily activities. A regular (“control”) size and an undersized design of the same fixed bearing asymmetric PS prosthesis were analyzed during walking and squat using finite element analysis. The two models showed similar internal-external rotations and antero-posterior displacements during both activities. Slightly higher displacements, wider contact areas and lower contact pressure were found in the control size. Post-cam engagement angles were similar on both sizes. Changes in TKA size slightly affected knee kinematics and kinetics, with post-cam related differences leading to minor changes in kinetic patterns.