Journal article

Evaluation of knee functional calibration with and without the effect of soft tissue artefact

Morgan Sangeux, Arnaud Barre, Kamiar Aminian



Functional calibration methods were devised to improve repeatability and accuracy of the knee flexion-extension axis, which is used to define the medio-lateral axis of the femur coordinate system in gait analysis. Repeatability of functional calibration methods has been studied extensively in healthy individuals, but not accuracy in the absence of a benchmark knee axis. We captured bi-plane fluoroscopy data of the knee joint in 17 subjects with unilateral total knee arthroplasty during treadmill walking. The prosthesis provided a benchmark knee axis to evaluate the functional calibration methods. Stereo-photogrammetry data of thigh and shank marker clusters were captured simultaneously to in..

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Awarded by Swiss National Science Foundation (SNSF)

Funding Acknowledgements

Morgan Sangeux is supported by a career development Grant from The Murdoch Childrens Research Institute, Australia. The biplane fluoroscopy experiments were supported in part by the Swiss National Science Foundation (SNSF), under Grant 205320-137940 and Grant 205321-120136 and in part by the Interinstitutional Centre of Translational Biomechanics (CBT) foundation. This work was also partly supported by the "Fondation de soutien a la recherche dans le domaine de l'orthopedietraumatologie".