Article
Multidisciplinary Sciences
Ji Hye Choi, Hee Soo Han, Young Jin Park, Seungbum Koo, Taeyong Lee, Kyoung Min Lee
Summary: The varus angulation type of medial ankle osteoarthritis is biomechanically more imbalanced than the medial translation type, and the maximum ankle varus moment is significantly associated with the lateral talo-first metatarsal angle, which should be considered for correction during motion-preserving surgeries to restore the biomechanical balance of the ankle.
Article
Medicine, General & Internal
Andrew J. Goldberg, Kashfia Chowdhury, Ekaterina Bordea, Iva Hauptmannova, James Blackstone, Deirdre Brooking, Elizabeth L. Deane, Stephen Bendall, Andrew Bing, Chris Blundell, Sunil Dhar, Andrew Molloy, Steve Milner, Mike Karski, Steve Hepple, Malik Siddique, David T. Loveday, Viren Mishra, Paul Cooke, Paul Halliwell, David Townshend, Simon S. Skene, Caroline J. Dore
Summary: This study compared the outcomes of total ankle replacement (TAR) and ankle fusion (AF) as surgical treatments for end-stage ankle osteoarthritis. The results showed that both TAR and AF led to improvements in clinical scores, but differed in terms of adverse events. TAR was associated with more wound healing complications and nerve injuries, while AF had more thromboembolism and nonunion.
ANNALS OF INTERNAL MEDICINE
(2022)
Article
Engineering, Biomedical
Nicholas R. Hugenberg, Tuhin Roy, Hadiya Harrigan, Margherita Capriotti, Hyoung-Ki Lee, Murthy Guddati, James F. Greenleaf, Matthew W. Urban, Wilkins Aquino
Summary: A new method is proposed to improve the accuracy of materials characterization through modeling and analytical frameworks, with validation of method effectiveness through in silico tests.
PHYSICS IN MEDICINE AND BIOLOGY
(2021)
Article
Optics
Konstantin Shcherbin, Igor Gvozdovskyy, Alexandr Shumelyuk, Jonathan Slagle, Dean R. Evans
Summary: A two-wave mixing adaptive interferometer based on a liquid crystal light valve with a semiconductor GaAs substrate is developed and investigated in this study. The local response of the dynamic hologram recorded in the liquid crystal layer enables the detection of small phase modulations of the object beam. Experimental results reveal that the interferometer exhibits temporal adaptability in the subsecond range, and the large optical nonlinearity of the cell enhances the sensitivity for measuring small displacements.
Article
Acoustics
Marina Bakaric, Paul Fromme, Andrew Hurrell, Srinath Rajagopal, Piero Miloro, Bajram Zeqiri, Benjamin T. Cox, Bradley E. Treeby
Summary: The research highlights the significant impact of temperature on the output of PZT transducers, showing an increase in efficiency with temperature. Results were consistent when using the same signal chain for measurement, but transducers exhibited different behavior when driven using a pulser.
Article
Multidisciplinary Sciences
Antonio Gomez, Antonio Callejas, Guillermo Rus, Nader Saffari
Summary: This article experimentally validates a wave propagation model for transluminal propagation based on a Kelvin Voigt Fractional Derivative wave equation, which accurately simulates the shear wave propagation in soft tissue.
SCIENTIFIC REPORTS
(2022)
Article
Orthopedics
Angel Zeininger, Daniel Schmitt, Cherice Hughes-Oliver, Robin M. Queen
Summary: This study traced the pathway of the center of pressure (COP) under the foot in patients with ankle osteoarthritis (OA) both before and after surgery, revealing weaker symmetry before surgery but improved symmetry afterwards. Patients had slower walking speeds and shorter COP paths pre-surgery, which increased and remained stable post-surgery.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2021)
Article
Critical Care Medicine
Kai Borcherding, Gerhard Schmidmaier, Gunther O. Hofmann, Britt Wildemann
Summary: This article discusses the use of implant surface modifications and coatings in orthopedic surgery to address issues such as implant loosening, bone healing failure, infections, and large bony defects.
INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
(2021)
Article
Entomology
Nathan Justus, Rodrigo Krugner, Ross L. Hatton
Summary: This paper presents a novel noncontact technique using video cameras to analyze vibrational signals transmitted through spiderwebs. The technique is validated against laser Doppler vibrometry and shows comparable results. The study highlights the importance of understanding how spiders perceive the world through their webs and the potential for new biological and engineering techniques.
Review
Optics
Sudheesh K. Rajput, Osamu Matoba, Yuki Takase, Tomoyoshi Inoue, Kohei Itaya, Manoj Kumar, Xiangyu Quan, Peng Xia, Yasuhiro Awatsuji
Summary: Sound is an important physical phenomenon that can be explained and visualized using multiparameter digital holography (DH). This paper provides a brief review of sound field imaging techniques, focusing on the multiparameter imaging capability of DH, and presents several experimental results for imaging sound in both audible and ultrasound ranges.
Article
Chemistry, Physical
Yang Xue, Lan Zhang, Fuwei Liu, Liang Kong, Yong Han
Summary: This study developed a TiO2 matrix with excellent photothermal properties and antibacterial performance, which can promote the phenotype switch of macrophages and the proliferation and differentiation of bone marrow mesenchymal stem cells. In vitro and in vivo experiments demonstrated the outstanding immunomodulatory and bone regeneration ability of this TiO2 matrix.
Article
Medicine, General & Internal
Simone Santini, Waheeb Alharbi, Kar Hao Teoh, Mario Herrera-Perez, Victor Valderrabano
Summary: This study analyzed the results of revision surgery for symptomatic isolated aseptic loosening of the talar component in a mobile-bearing three-component TAA. It demonstrated that replacing the talar component and inlay is an effective solution to reduce pain, restore ankle function, and improve quality of life.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Chemistry, Physical
Yang Xue, Lan Zhang, Fuwei Liu, Liang Kong, Yong Han
Summary: This study developed a nanograined TiO2 matrix with (Si/P)-dual ions and hierarchical nano/microporous topography on a Ti implant. It exhibited excellent photothermal properties and efficient antibacterial activity under near-infrared (NIR) light irradiation. The matrix also showed immunomodulatory effects and promoted bone regeneration by inducing the M1-to-M2 phenotype switch of macrophages and enhancing the recruitment, proliferation, and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) in vitro and in vivo.
Article
Orthopedics
Francois Lintz, Alessio Bernasconi, Kristian Buedts, Matthew Welck, Scott Ellis, Cesar de Cesar Netto
Summary: This study evaluated the spatial distribution of bone mineral density in the ankle joint and found that the stress distribution in the joint affects the distribution of bone density. Varus hindfeet were associated with greater medial bone density, while valgus hindfeet were associated with greater lateral bone density.
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2023)
Article
Orthopedics
Andrew Dodd, Ellie Pinsker, Alastair S. E. Younger, Murray J. Penner, Kevin J. Wing, Peter J. Dryden, Mark Glazebrook, Timothy R. Daniels
Summary: Men and women with end-stage ankle arthritis benefited similarly from total ankle replacement and ankle arthrodesis. Small differences in pain and function between men and women largely disappeared when controlling for potential confounding variables. Both total ankle replacement and ankle arthrodesis remain good treatment options for end-stage ankle arthritis in both men and women.
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2022)
Article
Anatomy & Morphology
Adam D. Sylvester, Patricia A. Kramer
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2018)
Article
Neurosciences
Cody L. McDonald, Patricia A. Kramer, Sara J. Morgan, Elizabeth G. Halsne, Sarah M. Cheever, Brian J. Hafner
Article
Multidisciplinary Sciences
Sara J. Morgan, Cody L. McDonald, Elizabeth G. Halsne, Sarah M. Cheever, Rana Salem, Patricia A. Kramer, Brian J. Hafner
Article
Anatomy & Morphology
Jeannie F. Bailey, Sara Shefi, Michalle Soudack, Patricia A. Kramer, Ella Been
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2019)
Article
Orthopedics
David Agoada, Patricia Ann Kramer
JOURNAL OF THE AMERICAN PODIATRIC MEDICAL ASSOCIATION
(2019)
Article
Clinical Neurology
Jeannie F. Bailey, Carolyn J. Sparrey, Frances M. K. Williams, Patrick F. Curran, Jeffrey C. Lotz, Patricia A. Kramer
Article
Anthropology
Steven G. Lautzenheiser, Adam D. Sylvester, Patricia Ann Kramer
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
(2020)
Article
Anthropology
David Agoada, Patricia Ann Kramer
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
(2020)
Article
Orthopedics
Sarah M. Cheever, Patricia A. Kramer, Sara J. Morgan, Brian J. Hafner
Summary: The study found that people with lower-limb amputation have significantly higher energy expenditure in standing compared to sitting, indicating additional energy may be required to maintain an upright position, especially when using a lower-limb prosthesis.
PROSTHETICS AND ORTHOTICS INTERNATIONAL
(2021)
Article
Biology
Adam D. Sylvester, Steven G. Lautzenheiser, Patricia Ann Kramer
Summary: By estimating the forces in the lower limb muscles of ten individuals during walking, it was found that muscles supporting or propelling the body show higher consistency in force magnitudes and force curve shapes, while muscles generating moments in the direction of or orthogonal to the ground reaction force exhibit lower forces with greater variability.
Article
Anatomy & Morphology
Patricia Ann Kramer, Steven G. Lautzenheiser
Summary: This study investigates the role of foot morphology in the change of arch height during walking. By measuring and categorizing the feet of 77 individuals, the researchers found differences in the response to forces among different foot types. This study is important for understanding foot mechanics and changes during walking.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2022)
Article
Multidisciplinary Sciences
Patricia Ann Kramer, Adam D. D. Sylvester
Summary: Despite the initial assumption that wider hips lead to increased energy expenditure while walking, our study using a musculoskeletal model and evaluating 752 trials found no correlation between hip width and total abductor energy expenditure. However, we did find that maximum hip joint coronal plane moment is predicted by pelvic width and, in combination with mass and velocity, explains 79% of the variation. These results indicate that people use their morphology to limit differences in energy expenditure and intraspecific variation may not be useful in understanding species differences.
Article
Anthropology
Patricia Ann Kramer, Elen M. Feuerriegel, Steven G. Lautzenheiser, Adam D. Sylvester
Summary: Musculoskeletal models rely on assumptions and data, including kinematic data, kinetic data, and muscle parameters. Previous studies have shown that different muscle parameters can lead to variations in muscle and joint reaction forces during walking.
EVOLUTIONARY HUMAN SCIENCES
(2022)
Article
Biology
Alexandra G. Hammerberg, Patricia Ann Kramer
Summary: This study quantified the clustering of the center of pressure on the foot during walking and found that the consistency of the location of peak forces on the foot differed between braking and propulsion phases. Contrary to the hypothesis, the center of pressure was more consistent and clustered during propulsion than braking across all participants and trials. This contributes to a better understanding of applied forces on the foot and the mechanisms shaping the modern bipedal form.
Review
Biology
Adam D. Sylvester, Steven G. Lautzenheiser, Patricia Ann Kramer
Summary: The importance of locomotion in accessing key resources is highlighted in the text, with a focus on understanding internal forces and combining experimental data with virtual models. The methodological approach combines knowledge from biological anthropology and mechanical engineering, requiring accurate input data for producing effective models.
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)