Article
Dentistry, Oral Surgery & Medicine
Edmara T. P. Bergamo, Tiago M. C. Bastos, Adolfo C. O. Lopes, Everardo N. S. de Araujo Junior, Paulo G. Coelho, Ernesto B. Benalcazar Jalkh, Abbas Zahoui, Estevam A. Bonfante
Summary: The study characterized the physicochemical and mechanical properties of a milled fiber-reinforced composite for implant-supported fixed dental prostheses. Results showed that FDPs fabricated with milled epoxy resin matrix reinforced with glass fibers demonstrated high probability of survival at 300N load, indicating good fatigue performance.
Article
Medicine, Research & Experimental
Han Zhou, Linzhi Wu, Qianqian Wu
Summary: Heart valve replacement is an effective treatment for severe valvular stenosis or insufficiency, with options of mechanical or biological valves. Fabric composite valves offer advantages of both mechanical and biological valves, allowing flexibility and wear resistance adjustments.
BIOMEDICINE & PHARMACOTHERAPY
(2021)
Article
Computer Science, Interdisciplinary Applications
Hyan Candido Guedes, Joao Luiz Junho Pereira, Guilherme Ferreira Gomes
Summary: This study aims to develop and parametrically optimize a high-performance composite material using interpolation strategy, thickness variations, and the number of layers. Four different multi-objective optimizers were evaluated to minimize total mass and evaluate the Tsai-Wu failure criterion under different loading conditions. The MOPSO algorithm demonstrated superior robustness and significantly improved the optimal solution compared to the initial model.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2023)
Article
Mechanics
Milinda Yapa Hamillage, Colin Leung, Kawai Kwok
Summary: This study investigates the effective viscoelastic response of thin-ply composite laminates for deployable spacecraft applications through computational and experimental methods. A two-scale homogenization approach is utilized to model the materials, with experimental validation of the model predictions.
COMPOSITE STRUCTURES
(2022)
Article
Chemistry, Multidisciplinary
Jorge Corona-Castuera, Daniela Rodriguez-Delgado, John Henao, Juan Carlos Castro-Sandoval, Carlos A. Poblano-Salas
Summary: With the projected increase in the global elderly population, the importance of prosthetic devices for this demographic is growing. Additive manufacturing and self-supported cellular structures in prosthetic design offer significant opportunities to improve the physical and mechanical properties of hip implants. The use of tomography data and internal gyroid-type cell structures in designing personalized partial hip implants can help emulate bone density and fine-tune mechanical properties to match the replaced bone tissue.
Article
Multidisciplinary Sciences
Elias Mazzawi, Nabil Ghrayeb, Farouk Khury, Doron Norman, Yaniv Keren
Summary: Hip hemiarthroplasty is the preferred treatment for displaced femoral neck fractures in elderly less active patients. Intraoperative periprosthetic femur fracture is a significant complication of this procedure, which can lead to poor functional outcome and increased morbidity and mortality. This study found that the prevalence of intraoperative fractures was significantly higher in patients treated with a Corail prosthesis compared to those treated with an Austin-Moore prosthesis.
SCIENTIFIC REPORTS
(2022)
Article
Biotechnology & Applied Microbiology
Yuchen Liu, Fuyang Wang, Jiawei Ying, Minghao Xu, Yuan Wei, Junlei Li, Hui Xie, Dewei Zhao, Liangliang Cheng
Summary: This study evaluated the biomechanical effectiveness of 3D-printed integrated acetabular prosthesis (IAP) and modular acetabular prosthesis (MAP) in reconstructing the acetabulum for patients with Crowe III developmental dysplasia of the hip (DDH). The results showed that IAP had a lower risk of loosening and fracture, as well as better long-term stability compared to MAP.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Cardiac & Cardiovascular Systems
Nimesh D. Desai, Sean M. O'Brien, David J. Cohen, John Carroll, Sreekanth Vemulapalli, Suzanne V. Arnold, John K. Forrest, Vinod H. Thourani, Ajay J. Kirtane, Brian O'Neil, Pratik Manandhar, David M. Shahian, Vinay Badhwar, Joseph E. Bavaria
Summary: This study revealed significant variations in TAVR outcomes among different healthcare sites in the United States. Approximately 11% of sites were identified as providing care below the average level of performance, indicating the need for further investigation into factors related to high- and low-performing sites.
Article
Chemistry, Physical
Ahmed Abu-Awwad, Cristina Tudoran, Jenel Marian Patrascu Jr, Cosmin Faur, Mariana Tudoran, Gabriel Mihai Mekeres, Simona-Alina Abu-Awwad, Andrei Nicolae Csep
Summary: This study analyzed the impact of the COVID-19 pandemic on total hip arthroplasty (THA) with cemented (CHP) and cementless (CLHP) prostheses, in terms of the benefit/cost ratio. The results showed that both CHP and CLHP THA procedures could reduce hospitalization duration during the COVID-19 period, with CHP offering better outcomes in terms of mobilization and shorter hospitalization duration compared to CLHP.
Article
Medicine, General & Internal
Alexander Draschl, Georg Hauer, Stefan Franz Fischerauer, Angelika Kogler, Lukas Leitner, Dimosthenis Andreou, Andreas Leithner, Patrick Sadoghi
Summary: This study evaluated the performance of ChatGPT in answering questions about periprosthetic joint infections (PJI) of the hip and knee. The findings showed that ChatGPT's free-text responses were mostly reliable and useful, although there were variations in performance across different questions and subtopics.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Mechanics
Ajay Kumar, Aman Khurana, Asesh Kumar Patra, Yamnesh Agrawal, M. M. Joglekar
Summary: This study investigates the feasibility of using multilayered DE composites to overcome the viscoelastic effects of DE materials and compares the electromechanical performance of bi-layer and tri-layer DE composites with a mono-layer membrane. The findings show that the bi-layer DE composite performs better in terms of actuation levels, hysteresis, and creep response. These results hold promise for improving the actuation capabilities of DE materials while maintaining dielectric breakdown strength.
COMPOSITE STRUCTURES
(2023)
Article
Construction & Building Technology
Kai Ye, Aravind Dasari, Thomas J. N. Hooper
Summary: This study focuses on the thermal and fire resistance of sodium- and potassium-type metakaolin geopolymers reinforced with glass fiber fabrics. The results show that the geopolymer matrices remain stable up to 700 degrees C, but a fiber-matrix interaction occurs above this temperature, leading to the crystallization of different phases at 1000 degrees C. The fire resistance times of the Na-GF and K-GF composites were 53.6-55.1 min and 53.2-68.7 min respectively, when subjected to a temperature profile similar to ISO 834 fire curve.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mao Tang, Shiji Lu, Lili He, Xiaodong Zhu, Wei Feng, Wanming Zhang
Summary: This study synthesized pure ZnO and ZnTiO3/ZnO composite photocatalysts using zinc acetate and butyl titanate, and found that the ZnTiO3/ZnO composite with a Ti/Zn molar ratio of 0.2 exhibited the highest photocatalytic activity. Exceeding this ratio decreased the photocatalytic performance of the composites.
Review
Medicine, General & Internal
Long Yuan, Sen Li, Wanxiang Li, Jichao Bian, Yahui Bao, Xiaopeng Zhou, Yuanmin Zhang, Wang Li, Guodong Wang
Summary: This case report described the occurrence of periprosthetic femoral fractures after hip arthroplasty in a 54-year-old female patient. The patient underwent revision surgery using the Solution prosthesis, but later experienced a mid-femoral prosthesis fracture. A second revision surgery and allogeneic bone plate fixation were performed, resulting in satisfactory outcomes.
Article
Dentistry, Oral Surgery & Medicine
Edmara T. P. Bergamo, Satoshi Yamaguchi, Adolfo C. O. Lopes, Paulo G. Coelho, Everardo N. S. de Araujo-Junior, Ernesto B. Benalcazar Jalkh, Abbas Zahoui, Estevam A. Bonfante
Summary: This study characterized the biomechanical performance of fiber-reinforced composite 5 unit implant-supported fixed dental prostheses receiving individually milled crowns through insilico and fatigue analyses. The results demonstrated high reliability of the prostheses under different loads, with crown fracture being the main failure mode.
