Supervised learning for bone shape and cortical thickness estimation from CT images for finite element analysis

V Chandran, G Maquer, T Gerig, P Zysset… - Medical image analysis, 2019 - Elsevier
Abstract Knowledge about the thickness of the cortical bone is of high interest for fracture
risk assessment. Most finite element model solutions overlook this information because of …

2D-3D reconstruction of the proximal femur from DXA scans: Evaluation of the 3D-Shaper software

A Dudle, Y Gugler, M Pretterklieber, S Ferrari… - … in Bioengineering and …, 2023 - frontiersin.org
Introduction: Osteoporosis is currently diagnosed based on areal bone mineral density
(aBMD) computed from 2D DXA scans. However, aBMD is a limited surrogate for femoral …

The effect of cement augmentation on pedicle screw fixation under various load cases: results from a combined experimental, micro-CT, and micro-finite element …

Y Chevalier, M Matsuura, S Krüger… - Bone & Joint …, 2021 - boneandjoint.org.uk
Aims Anchorage of pedicle screw rod instrumentation in the elderly spine with poor bone
quality remains challenging. Our study aims to evaluate how the screw bone anchorage is …

Mapping anisotropy improves QCT-based finite element estimation of hip strength in pooled stance and side-fall load configurations

J Panyasantisuk, E Dall'Ara, M Pretterklieber… - Medical engineering & …, 2018 - Elsevier
Hip fractures are one of the most severe consequences of osteoporosis. Compared to the
clinical standard of DXA-based aBMD at the femoral neck, QCT-based FEA delivers a better …

Postmenopausal osteoporosis

A Bjelica, V Vučaj-Ćirilović… - Medicinski …, 2018 - doiserbia.nb.rs
Introduction. Postmenopausal women are at a great risk for osteoporosis and bone fractures.
Pathophysiology of osteoporosis. The two main factors causing osteoporosis are aging and …

Finite element models can reproduce the effect of nucleotomy on the multi-axial compliance of human intervertebral discs

MA Stadelmann, R Stocker, G Maquer… - Computer methods in …, 2020 - Taylor & Francis
Finite element (FE) models can unravel the link between intervertebral disc (IVD)
degeneration and its mechanical behaviour. Nucleotomy may provide the data required for …

Mechanical metric for skeletal biomechanics derived from spectral analysis of stiffness matrix

P Henyš, M Kuchař, P Hájek, N Hammer - Scientific Reports, 2021 - nature.com
A new metric for the quantitative and qualitative evaluation of bone stiffness is introduced. It
is based on the spectral decomposition of stiffness matrix computed with finite element …

A combined active shape and mean appearance model for the reconstruction of segmental bone loss

D Kramer, J Van der Merwe, M Lüthi - Medical Engineering & Physics, 2022 - Elsevier
This study investigates the novel combination of an active shape and mean appearance
model to estimate missing bone geometry and density distribution from sparse inputs …

Constitutive models of bone: The human femur

MG Branni - 2023 - eprints.qut.edu.au
Bone is a lightweight structure that adapts in time to support habitual loads through a dense
cortical shell and an intricate trabecular network to best support daily loads while minimizing …