Article
Computer Science, Interdisciplinary Applications
Sebastian Bachmann, Dieter H. Pahr, Alexander Synek
Summary: The objective of this study was to assess the agreement between hFE-based IBR and mu FE-based IBR in predicting hip joint loading. The results showed that using hFE models significantly reduced the computational time and improved the prediction of joint loading history. The study suggests that cortical and trabecular bone should be modeled separately, and at least density-dependent heterogeneous material properties should be used with hFE models to predict joint loading.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2023)
Article
Computer Science, Interdisciplinary Applications
Xijin Hua, Junyan Li, Enrico De Pieri, Stephen J. Ferguson
Summary: This study developed a multiscale computational modeling approach to investigate the time-dependent biphasic behavior of the articular cartilage in the hip joint under physiological loading. The results showed that the interstitial fluid pressure in the cartilage supported the majority of the load, and the location of the contact area affected the changes in peak pressures during various activities.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2022)
Article
Biophysics
Xijin Hua, Liming Shu, Junyan Li
Summary: This study developed a multiscale computational model to investigate the long-term biphasic behavior of hip articular cartilage (AC) under physiological loadings. The results showed that the interstitial fluid pressure played a significant role in load-bearing during gait, and the contact pressure and fluid pressure varied over time depending on the contact area. The peak stresses and strains in the solid matrix of the AC increased gradually over time.
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Nynke B. Rooks, Thor F. Besier, Marco T. Y. Schneider
Summary: The reproducibility of computational knee joint modeling is questionable, and the influence of model variations on simulation outcomes should be investigated. This study conducted a parameter sensitivity analysis using multiple finite element knee joint models and found that the ligament material properties had a significant impact on model outcomes. The sensitivity of model parameters is model-dependent and cannot be assumed to be the same in other models.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Faezeh Moshfeghifar, Torkan Gholamalizadeh, Zachary Ferguson, Teseo Schneider, Michael Bachmann Nielsen, Daniele Panozzo, Sune Darkner, Kenny Erleben
Summary: This study presents multiple subject-specific finite element models of the hip joint and a novel semi-automated modeling workflow. The models exhibit high-quality discretization and accurate geometries, and the simulation results demonstrate the impact of inter-subject variability and asymmetry. The research data and tools are openly accessible on GitHub, allowing free access to verified and reproducible models.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2022)
Article
Biophysics
Mao Li, Mikko S. Venalainen, Shekhar S. Chandra, Rushabh Patel, Jurgen Fripp, Craig Engstrom, Rami K. Korhonen, Juha Toyras, Stuart Crozier
Summary: The study compared discrete element analysis (DEA) and finite element analysis (FEA) in analyzing the contact mechanics of the hip joint during walking gait. Results showed that DEA was substantially more efficient than FEA in terms of computational time, with similar predictions for contact pressure distribution in the hip joint during normal walking. The average differences in contact pressures and contact area ratios between DEA and FEA were within acceptable margins across all loading time-points.
JOURNAL OF BIOMECHANICS
(2021)
Article
Engineering, Biomedical
Donald Dalli, Joseph Buhagiar, Pierluigi Mollicone, Pierre Schembri Wismayer
Summary: In this study, a novel polymer-on-metal hip joint prosthesis design utilizing uni-directional articulations and polyethylene materials was developed and tested. The wear and range of motion of the new implant were compared to the conventional design using an experimental hip joint simulator. Results showed that the new prosthesis exhibited significantly reduced wear rates and increased range of motion, which indicates promising clinical applications.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Orthopedics
Binglang Xiong, Peng Yang, Tianye Lin, Jingli Xu, Yong Xie, Yongliang Guo, Churong Liu, Qizhao Zhou, Qizhong Lai, Wei He, Qiushi Wei, Qingwen Zhang
Summary: This study constructs a comprehensive simulation method for analyzing the dynamics and contact stress changes of the hip joint throughout a gait cycle. Individualized simulation modeling is achieved based on gait trajectories and CT images. The combination of subject-specific gait and inverse dynamic analysis provides pre-processing parameters for more accurate biomechanical analysis of the hip joint.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2022)
Article
Engineering, Biomedical
Junyan Li
Summary: Musculoskeletal models are crucial for biomechanical investigations, but deformable contact models of the hip are often overlooked. This study presents a new approach using finite element analysis to simulate hip joint movement within a musculoskeletal model, providing insights into hip contact mechanics.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Ermes Botte, Francesco Biagini, Chiara Magliaro, Andrea Rinaldo, Amos Maritan, Arti Ahluwalia
Summary: The study describes a computational pipeline for identifying the range of nonisometric scaling in 3D cell aggregates, utilizing simulated 3D cell-laden spheroids and modeling metabolic rate distributions. The method highlights the importance of considering fluctuations and variability in size and metabolic rates when estimating scaling exponents, as well as how scaling exponents may differ significantly in cells with joint mass and metabolic rate variations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biophysics
Yuhei Aoshima, Sotaro Murakami, Koji Mizuno, Yohei Otaka, Minoru Yamada, Masahiro Jinzaki
Summary: Hip fractures caused by falls are significant health problems for the elderly. Finite element models have been widely used to evaluate the risk of hip fracture during the impact phase. This study focused on the impact phase of falls using a whole-body human finite element model, and emphasized the importance of including the whole body in evaluating the risk of hip fractures.
JOURNAL OF BIOMECHANICS
(2022)
Article
Computer Science, Interdisciplinary Applications
Tulashi Simkheada, Gustavo A. Orozco, Rami K. Korhonen, Petri Tanska, Mika E. Mononen
Summary: This study aimed to determine the most suitable and efficient constitutive model of the meniscus for simulating cartilage responses in the knee joint. The results showed that simpler constitutive material models can reproduce similar cartilage responses to the complex models, but only knee models that consider orthotropic elastic meniscus can adequately reproduce the meniscus responses.
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Christopher Matthews, Stephen Novascone, Al Casagranda, Larry Aagesen, Cetin Unal, David Andersson
Summary: Metallic fuel has historical significance and continues to be relevant in nuclear reactors. Various models have been developed to describe metallic fuel and cladding materials. The implementation of new capabilities in the fuel performance code BISON has improved the simulation of metallic fuel performance. The models provide a baseline for further development and improvement of fuel performance simulations in off-normal designs.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Engineering, Mechanical
Soheil Samadi, Shengli Jin, Dietmar Gruber, Harald Harmuth
Summary: The study investigates the effect of the lower post-failure stress limit in the fictitious crack model, showing that the developed damaged elasticity model allows for a more accurate simulation of fracture behavior, especially in brittle materials.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Computer Science, Interdisciplinary Applications
Seyed Arvin Aghili, Kamran Hassani, Mohammad Nikkhoo
Summary: The study aimed to conduct fatigue analysis on different materials for hip prosthesis and found that titanium material had the lowest stress and highest safety factor, making it the most suitable option for hip prosthesis due to lower stress concentration and longer life compared to other materials.
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
(2021)
Article
Biophysics
Nathan D. Camarillo, Rafael Jimenez-Silva, Frances T. Sheehan
Summary: This article discusses the statistical dependence between multiple measurements from the same participant and provides recommendations for using these measurements when they are not independent.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
J. Huet, A. -S. Boureau, A. Sarcher, C. Cornu, A. Nordez
Summary: Standard compression in freehand 3D ultrasound induces a bias in volume calculations, but minimal compression and gel pad methods have similar results. With a trained examiner and precautions, the bias can be minimized and become acceptable in clinical applications.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
C. Lariviere, A. H. Eskandari, H. Mecheri, F. Ghezelbash, D. Gagnon, A. Shirazi-Adl
Summary: Recent developments in musculoskeletal modeling have focused on model customization. Personalization of the spine profile may affect estimates of spinal loading and stability. This study investigates the biomechanical consequences of changes in the spinal profile and finds that personalizing the spine profile has medium to large effects on trunk muscle forces and negligible to small effects on spinal loading and stability.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Luke T. Mattar, Arash B. Mahboobin, Adam J. Popchak, William J. Anderst, Volker Musahl, James J. Irrgang, Richard E. Debski
Summary: Exercise therapy fails in about 25.0% of cases for individuals with rotator cuff tears, and one reason for this failure may be the inability to strengthen and balance the muscle forces that keep the humeral head in the correct position. This study developed computational musculoskeletal models to compare the net muscle force before and after exercise therapy between successfully and unsuccessfully treated patients. The study found that unsuccessfully treated patients had less inferiorly oriented net muscle forces, which may increase the risk of impingement.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Natsuki Sado, Takeshi Edagawa, Toshihide Fujimori, Shogo Hashimoto, Yoshikazu Okamoto, Takahito Nakajima
Summary: The existing methods for predicting hip and lumbosacral joint centres in Japanese adults are biased and differ between sexes. We propose new regression equations that consider soft-tissue thickness, sex differences, and a height-directional measure, and validate them using leave-one-out cross-validation.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Peimin Yu, Xuanzhen Cen, Qichang Mei, Alan Wang, Yaodong Gu, Justin Fernandez
Summary: This study aimed to explore the intra-foot biomechanical differences among individuals with chronic ankle instability (CAI), copers, and healthy individuals during dynamic tasks. The study found that copers and CAI individuals had smaller dorsiflexion angles and copers presented a more eversion position compared to healthy participants. Copers also had greater dorsiflexion angles in the metatarsophalangeal joint and more inversion moments in the subtalar joint during certain tasks. These findings can help in designing interventions to restore ankle joint functions in CAI individuals.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Jon Skovgaard Jensen, Anders Holsgaard-Larsen, Anders Stengaard Sorensen, Per Aagaard, Jens Bojsen-Moller
Summary: This study investigates the biomechanical effects of robot-assisted body weight unloading (BWU) on gait patterns in healthy young adults. The results show that dynamic robot-assisted BWU enables reduced kinetic requirements without distorting biomechanically normal gait patterns during overground walking.
JOURNAL OF BIOMECHANICS
(2024)
