A5051583715- Spine and Intervertebral Disc Pathology
- Sports Performance and Training
- Sports injuries and prevention
- Scoliosis diagnosis and treatment
- Vibration and Dynamic Analysis
- Shoulder Injury and Treatment
- Sports Dynamics and Biomechanics
- Structural Health Monitoring Techniques
- Total Knee Arthroplasty Outcomes
- Spinal Fractures and Fixation Techniques
- Musculoskeletal pain and rehabilitation
- Orthodontics and Dentofacial Orthopedics
- Knee injuries and reconstruction techniques
- Dental Radiography and Imaging
- Dental Implant Techniques and Outcomes
- Orthopaedic implants and arthroplasty
- Orthopedic Surgery and Rehabilitation
- Ultrasound Imaging and Elastography
- Railway Engineering and Dynamics
- Composite Structure Analysis and Optimization
- Lower Extremity Biomechanics and Pathologies
- Medical Imaging and Analysis
- Facial Trauma and Fracture Management
- Acoustic Wave Phenomena Research
- Composite Material Mechanics
Institut de Biomécanique Humaine Georges Charpak
2015-2024
Arts et Métiers
2011-2024
EPF - École d'ingénieurs
2021-2023
ParisTech
2012-2022
Sorbonne Université
2000-2022
Université Sorbonne Paris Nord
2017-2022
HESAM Université
2022
Chemring Countermeasures (United Kingdom)
2019
University of Pecs
2019
E-Connection
2019
To evaluate the accuracy of CAD/CAM generated splints in orthognathic surgery by comparing planned versus actual post-operative 3D images.Specific planning software (SimPlant(®) OMS Standalone 14.0) was used to perform a virtual Le Fort I osteotomy 10 fresh human cadaver heads. Stereolithographic were then and during surgical procedure reposition maxilla according position. Pre-operative postoperative CT scan images fused imported dedicated (MATLAB(®)) 7.11.) for calculating translational...
The increasing use of 3-dimensional (3D) imaging by orthodontists and maxillofacial surgeons to assess complex dentofacial deformities plan orthognathic surgeries implies a critical need for 3D cephalometric analysis. Although promising methods were suggested localize landmarks automatically, concerns about robustness generalizability restrain their clinical use. Consequently, highly trained operators remain needed perform manual landmarking. In this retrospective diagnostic study, we aimed...
A new approach called the “variational theory of complex rays” (VTCR) is developed for calculating vibrations weakly damped elastic structures in medium‐frequency range. Here, emphasis put on most fundamental aspects. The effective quantities (elastic energy, vibration intensity, etc.) are evaluated after solving a small system equations which does not derive from finite element discretization structure. Numerical examples related to plates show appeal and possibilities VTCR.
Patient-specific numerical simulation of the spine is a useful tool both in clinic and research. While geometrical personalization no more an issue, thanks to recent technological advances, non-invasive soft tissue’s mechanical properties remains challenge. Ultrasound elastography relatively measurement technique allowing evaluation elastic modulus through shear wave speed. The aim this study was determine feasibility elastographic measurements intervertebral disc. An vitro approach chosen...
In this study, we develop a two-dimensional finite element model, which is derived from an animal experiment and allows simulating osteogenesis within porous titanium scaffold implanted in ewe's hemi-mandible during 12 weeks. The cell activity described through diffusion equations regulated by the stress state of structure. We compare our model to (i) histological observations (ii) experimental data obtained mechanical test done on sacrificed animal. show that mechano-biological approach...
Obstructive sleep apnea syndrome (OSAS) is associated with postural dysfunction characterized by abnormal spinal curvature and disturbance of balance walking, whose pathophysiology poorly understood. We hypothesized that it may be the result a pathological interaction between ventilatory functions. Twelve patients OSAS (4 women, age 53 years [51-63] (median [quartiles]), hypopnea index 31/h [24-41]) were compared 12 healthy matched controls. Low dose biplanar X-rays (EOS® system) acquired...
In some dentofacial deformity patients, especially patients undergoing surgical orthodontic treatments, Computed Tomography (CT) scans are useful to assess complex asymmetry or plan orthognathic surgery. This assessment would be made easier for orthodontists and surgeons with a three-dimensional (3D) cephalometric analysis, which require the localization of landmarks construction reference planes. The objectives this study were manual landmarking repeatability reproducibility (R&R) set 3D...
Magnetic resonance imaging (MRI) and computed tomography scans are used to assess muscle volume, but the manual segmentation, slice by slice, is long tedious. We proposed an improvement in deformation of a parametric-specific object method using image processing. The 3D subject-specific geometry was reconstructed based on few selected number MRI slices fast rough contouring polygons. These polygons were matched shape optimisation original cost function. Then, constructed deformed. improved...
The maintenance of balance in healthy humans requires the preservation an horizontal gaze, best achieved through dynamical adjustments spinal curvatures and pelvic tilt that keep head-to-pelvis alignment close to vertical. It is currently unknown whether compensations respiratory-related postural perturbations are associated with vertical alignment. We tested this hypothesis comparison variables at extreme lung volume (total capacity, TLC; residual volume, RV) their reference value...
Although the use of pedicle screws is considered safe, mechanical issues still often occur. Commonly reported are screw loosening, bending and fracture. The aim this study was to develop a Finite Element (FE) model for biomechanics prediction intraoperative pullout strength. includes both parameterized patient-specific vertebra model. Pullout experiments were performed on 30 human cadaveric vertebrae from ten donors. experimental force-displacement data served evaluate FE performance. μCT...