Nikita Cobetto

Nikita Cobetto
Polytechnique Montréal · Department of Mechanical Engineering

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16
Publications
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211
Citations

Publications

Publications (16)
Article
PurposeAnterior Vertebral Body Tethering (AVBT), a fusionless surgical technique based on growth modulation, aims to correct pediatric scoliosis over time. However, medium-term curvature changes of the non-instrumented distal lumbar curve remains difficult to predict. The objective was to biomechanically analyze the level below the LIV to evaluate...
Article
Study design: Observational cohort study. Objective: To test the hypothesis that anterior vertebral body growth modulation (AVBGM) achieves 3D deformity correction after 2-year follow-up while brace treatment limits curve progression for moderate idiopathic scoliosis (30-50°). Summary of background data: For idiopathic scoliosis, bracing and A...
Article
Study design: Single-center prospective randomized controlled trial. Objective: To assess the computer-aided design/manufacturing (CAD/CAM) brace design approach, with and without added finite element modeling (FEM) simulations, after two years in terms of clinical outcomes, 3D correction, compliance and quality of life (QoL). Summary of backgr...
Article
Study design: Numerical planning and simulation of immediate and after 2 years growth modulation effects of anterior vertebral body growth modulation (AVBGM). Objective: The objective was to evaluate the planning tool predictive capability for immediate, 1-year, and 2-year postoperative correction and biomechanical effect on growth modulation ov...
Article
Study design: Computational simulation of lateral decubitus and anterior vertebral body growth modulation (AVBGM). Objectives: To biomechanically evaluate lateral decubitus and cable tensioning contributions on intra- and postoperative correction. Summary of background data: AVBGM is a compression-based fusionless procedure to treat progressiv...
Article
Study design: Numerical planning and simulation of immediate and post-two-year growth modulation effects of Anterior Vertebral Body Growth Modulation (AVBGM). Objectives: To develop a planning tool based on a patient-specific finite element model (FEM) of pediatric scoliosis integrating growth to computationally assess the 3D biomechanical effec...
Article
Background: Orthopedic braces made by Computer-Aided Design and Manufacturing and numerical simulation were shown to improve spinal deformities correction in adolescent idiopathic scoliosis while using less material. Simulations with BraceSim (Rodin4D, Groupe Lagarrigue, Bordeaux, France) require a sagittal radiograph, not always available. The ob...
Article
Full-text available
Background Recent studies showed that finite element model (FEM) combined to CAD/CAM improves the design of braces for the conservative treatment of adolescent idiopathic scoliosis (AIS), using 2D measurements from in-brace radiographs. We aim to assess the immediate effectiveness on curve correction in all three planes of braces designed using CAD...
Article
Background: Anterior vertebral body growth modulation is a fusionless instrumentation to correct scoliosis using growth modulation. The objective was to biomechanically assess effects of cable tensioning, screw positioning and post-operative position on tridimensional correction. Methods: The design of experiments included two variables: cable t...
Article
Full-text available
Purpose Clinical assessment of immediate in-brace effect of braces designed using CAD/CAM and FEM vs. only CAD/CAM for conservative treatment of AIS, using a randomized blinded and controlled study design. Methods Forty AIS patients were prospectively recruited and randomized into two groups. For 19 patients (control group), the brace was designed...
Article
Biomechanical study of the Providence brace for the treatment of adolescent idiopathic scoliosis (AIS). To model and assess the effectiveness of Providence nighttime brace. Providence nighttime brace is an alternative to traditional daytime thoracolumbosacral orthosis for the treatment of moderate scoliotic deformities. It applies three-point pre...
Article
Study Design Feasibility study to compare the effectiveness of 2 brace design and fabrication methods for treatment of adolescent idiopathic scoliosis: a standard plaster-cast method and a computational method combining computer-aided design and fabrication and finite element simulation. Objectives To improve brace design using a new brace design...

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