Christophe Marecaux

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A Finite Element model of the face soft tissue is proposed to simulate the morphological outcomes of maxillofacial surgery. Three modelling options are implemented: a linear elastic model with small and large deformation hypothesis, and an hyperelastic Mooney-Rivlin model. An evaluation procedure based on a qualitative and quantitative comparison of the(More)
One of the most important issue in soft tissue modeling is to assess the quality of the simulations. A validation protocol is presented based on two CT scans of the patient acquired before and after craniomaxillofacial surgery. The actual bone repositioning realized during the intervention are accurately measured and reproduced. An evaluation of the soft(More)
INTRODUCTION Bilateral sagittal split osteotomy (BSSO) of the mandibular ramus is the most frequent orthognatic surgery. The risk of neurosensory disorders remains high even their incidence varies according to numerous publications. The anatomical location of the alveolar pedicle seems to be one of the most important factors in these disorders. The aim of(More)
Two aspects required to establish a planning in orthognatic surgery are addressed in this paper. First, a 3D cephalometric analysis, which is clinically essential for the therapeutic decision. Then, an original method to build a biomechanical model of patient face soft tissue, which provides evaluation of the aesthetic outcomes of an intervention. Both(More)
December 13-15, 2007: Firenze, Italy, ed. by C. Manfredi, ISBN 978 88-8453-673-3 (print) ISBN 978-88-8453-674-7 (online) © Firenze university press, 2007. Abstract: A 3D biomechanical finite element model of the face is presented. Muscles are represented by piecewise uniaxial tension cable elements linking the insertion points. Such insertion points are(More)
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