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Contribution à l’analyse quantitative, morphologique etfonctionnelle du membre inférieur de l’enfant

Abstract : Clinical examination and standard X-rays of the lower limbs and feet have biases related to reproducibility and to 2-dimensional projection of a 3D object. The 3Dreconstruction of the anatomical segments from biplanar images acquired in a standingposition should make possible to get rid of these biases, at the cost of moderate irradiation. The 1st part of this work asked the question of the use in current clinical practice of the reconstructions in 3D resulting from this system, and allowed validationof the reproducibility of these while giving reference values of the measured parameters in 3D. The 2nd part consisted in the adaptation of a model of reconstruction of the feet of the adult to those of the child, and aimed to check the reproducibility of the data obtained, and to report preliminary values of parameters of measurements. Finally, the 3rd part studied the feasibility of a complete analysis of pathological foot (congenital clubfoot) combining clinical examination, radiological morphology (EOS® images) andfoot function with gait analysis. We conclude that while this combined analysis appears to be critical, difficulties remain, particularly in the choice of the model for walkinganalysis, with the current full-scale models being overwhelmed by uncertainty related tothe placement of markers.
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Submitted on : Monday, May 28, 2018 - 12:10:05 PM
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  • HAL Id : tel-01801236, version 1


Virginie Rampal. Contribution à l’analyse quantitative, morphologique etfonctionnelle du membre inférieur de l’enfant. Biomécanique []. Ecole nationale supérieure d'arts et métiers - ENSAM, 2017. Français. ⟨NNT : 2017ENAM0052⟩. ⟨tel-01801236⟩



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