Article
Orthopedics
Edwin P. Su, Henry Ho, Vinay Bhal, Lawrence R. Housman, John L. Masonis, John W. Noble, Robert H. Hopper, C. Anderson Engh
Summary: This prospective, multicenter, post-market-approval study demonstrated that the BHR implant system is safe and effective through 10 years of follow-up, particularly among young male patients.
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2021)
Article
Chemistry, Physical
Jian Su, Jian-Jun Wang, Shi-Tong Yan, Min Zhang, Hui-Zhi Wang, Ning-Ze Zhang, Yi-Chao Luan, Cheng-Kung Cheng
Summary: This study compared the wear rate between different friction pairs using a hip joint simulator and recommended a suitable prosthesis combination based on processing technology and cost, finding that a CoCrMo femoral head with an accompanying XLPE liner is the most suitable choice for hip prostheses in terms of wear rate and cost-effectiveness.
Article
Engineering, Biomedical
Shawn Ming Song Toh, Ariyan Ashkanfar, Russell English, Glynn Rothwell
Summary: In this study, a fretting wear algorithm was developed to investigate wear damage on bearing surfaces of THRs, predicting linear and volumetric wear rates effectively. Results showed comparable wear rates to in-vivo THRs and matched wear patterns from conventional polyethylene liners, offering potential for reducing wear rates in THR design and clinical techniques.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Bradley T. Estes, Masataka Enomoto, Franklin T. Moutos, Megan A. Carson, Jeffrey M. Toth, Peter Eggert, Jonathan Stallrich, Vincent P. Willard, Deborah J. Veis, Dianne Little, Farshid Guilak, B. Duncan X. Lascelles
Summary: The study demonstrated that a tissue-engineered bicomponent implant, combining new technologies and components, was able to restore hip function in a canine model of hip osteoarthritis. The implant showed potential as a therapy for moderate hip osteoarthritis, providing clinically relevant evidence of its efficacy.
Article
Engineering, Biomedical
Donald Dalli, Leonardo Fanton, Bertram Mallia, Pierre Schembri Wismayer, Joseph Buhagiar, Pierluigi Mollicone
Summary: This study evaluates four different theoretical wear models applied to a novel hip prosthesis design. The models showed high discrepancies when predicting the wear of the new unidirectional design, while providing a good indication for the conventional ball-and-socket design. The model considering friction-induced molecular orientation exhibited the closest agreement with experimental results.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Orthopedics
James W. Pritchett
Summary: Hip resurfacing is a feasible and attractive option for patients with blocked femoral canal and teenagers who require hip implants. It provides favorable outcomes and improves quality of life.
JOURNAL OF ARTHROPLASTY
(2023)
Review
Orthopedics
Giuseppe Rovere, Domenico De Mauro, Marco D'Orio, Camillo Fulchignoni, Maria Rosaria Matrangolo, Carlo Perisano, Antonio Ziranu, Elisabetta Pataia
Summary: Muscle flaps offer an excellent management option for patients with persistent infection after total hip arthroplasty, effectively preventing infection recurrence, maintaining limb function, reducing treatment costs, and improving postoperative quality of life.
BMC MUSCULOSKELETAL DISORDERS
(2021)
Article
Orthopedics
H. C. Amstutz, M. J. Le Duff
Summary: This study provides clinical results of 400 consecutive MoM HRAs implanted more than 20 years ago in one specialized centre, showing a 20-year survivorship of 83.5% with risk factors for revision including developmental dysplasia and low BMI. Female sex was a risk factor only in cases of hip dysplasia and small component size. No cases of metal sensitivity associated with revision surgery were reported.
BONE & JOINT JOURNAL
(2021)
Article
Orthopedics
Wayne Hoskins, Sophia Rainbird, Carl Holder, Stephen E. Graves, Roger Bingham
Summary: This study comparing the revision rates for aseptic loosening of highly porous acetabular combinations in primary THA found that highly porous-coated titanium acetabular components have low rates of aseptic loosening with long-term follow-up, but there may be differences between different component combinations.
JOURNAL OF ARTHROPLASTY
(2022)
Article
Orthopedics
Richard S. Page, Angela C. Alder-Price, Sophia Rainbird, Stephen E. Graves, Richard N. de Steiger, Yi Peng, Carl Holder, Michelle F. Lorimer, Stephen D. Gill
Summary: This study compared the revision rates of primary stemmed anatomic total shoulder arthroplasty using crosslinked polyethylene (XLPE) and non-XLPE. The results showed that non-XLPE had a higher risk of revision than XLPE, particularly for larger head sizes. The study suggests that the type of polyethylene is an important determinant of revision risk in shoulder arthroplasty.
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Renquan Ji, Fei Chen, Rongmin Ying, Li Zhang
Summary: This study examines the impact of different contact surface parameters on the wear of ceramic-titanium alloy artificial hip joints through simulations and experimental testing. The results show that the contacting surfaces exhibit a crescent-shaped composition and the initial variation in friction coefficient has minimal influence on wear rate. A surface roughness of 150 nm shows the least wear and the best anti-wear performance. The study also provides valuable insights into the influence of friction coefficients on the wear of artificial joint surfaces.
Article
Biochemistry & Molecular Biology
Karan M. Shah, Mark J. Dunning, Alison Gartland, J. Mark Wilkinson
Summary: This study investigates the effects of systemic and periprosthetic metal exposure on bone cells through gene expression analysis. Systemic exposure primarily inhibits osteoclast activity while periprosthetic exposure inhibits both osteoblast and osteoclast activity and increases inflammatory signaling. Gene clusters and pathways correlating with metal toxicity are identified, along with potential early markers of metal toxicity. Additionally, the study provides insights into the molecular basis for improved clinical outcomes with hydroxyapatite-coated prostheses compared to other surfaces in the presence of metal exposure.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Orthopedics
Emanuele Chisari, Justin A. Magnuson, Christian B. Ong, Javad Parvizi, Chad A. Krueger
Summary: This study compared infection occurrence between Metal-on-polyethylene (MoP) and ceramic-on-polyethylene (CoP) total hip arthroplasty implants. It found a higher risk of periprosthetic joint infection in MoP patients, even after adjusting for confounders, indicating a significant association. The recruitment of leukocytes to these implants may play a role and warrants further investigation.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2022)
Review
Materials Science, Multidisciplinary
Henrique Pinto-Borges, Oscar Carvalho, Bruno Henriques, Filipe Silva, Antonio Ramos, Julio C. M. Souza
Summary: In attempts to improve the mechanical performance of temporomandibular joint total joint replacement (TMJ TJR) prostheses, various materials and designs have been evaluated. However, wear between the TMJ TJR condyle and polymer-based fossa component can lead to material loss and release of metallic debris, increasing the risk of toxicity to surrounding tissues. Design optimization and novel materials with low friction and contact pressure are potential strategies to decrease wear, material loss, and the release of metallic particles, thereby preventing peri-prosthetic inflammatory reactions.
Article
Engineering, Biomedical
Masayuki Kyomoto, Toru Moro, Shihori Yamane, Kenichi Watanabe, Masami Hashimoto, Sakae Tanaka, Kazuhiko Ishihara
Summary: The study demonstrates that surface-modified all-polymer hip bearings exhibit superior performance in wear resistance and metal ion release, especially suitable for patients undergoing total hip arthroplasty.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2022)
Article
Orthopedics
Thomas J. Joyce, Grey Giddins
JOURNAL OF HAND SURGERY-EUROPEAN VOLUME
(2018)
Article
Clinical Neurology
Thomas J. Joyce, Simon L. Smith, Paul R. P. Rushton, Andrew J. Bowey, Michael J. Gibson
Article
Engineering, Biomedical
Rohan M. Bhalekar, Simon L. Smith, Thomas J. Joyce
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2019)
Article
Engineering, Biomedical
Goeksu Kandemir, Simon Smith, Thomas J. Joyce
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE
(2018)
Letter
Clinical Neurology
Thomas J. Joyce, Simon Smith, Paul R. P. Rushton, Andrew J. Bowey, Michael J. Gibson
Review
Medicine, General & Internal
Frederick Henshaw, Eleni Karasouli, Richard King, Usama Rahman, David Langton, June Madete, Fred Otsyeno, Vincent Mutiso, John Atinga, Martin Underwood, Mark Williams, Andrew Metcalfe
Editorial Material
Medicine, General & Internal
Chris Allan, Thomas J. Joyce, Allyson M. Pollock
BMJ-BRITISH MEDICAL JOURNAL
(2018)
Article
Orthopedics
D. J. Langton, S. R. Wells, T. J. Joyce, J. G. Bowsher, D. Deehan, S. Green, A. V. F. Nargol, J. P. Holland
BONE & JOINT JOURNAL
(2018)
Article
Cell & Tissue Engineering
D. J. Langton, S. Natu, C. F. Harrington, J. G. Bowsher, A. V. F. Nargol
BONE & JOINT RESEARCH
(2019)
Article
Cell & Tissue Engineering
N. D. Clement, M. Bardgett, K. Merrie, S. Furtado, R. Bowman, D. J. Langton, D. J. Deehan, J. Holland
BONE & JOINT RESEARCH
(2019)
Article
Cell Biology
David J. Langton, Stephen C. Bourke, Benedicte A. Lie, Gabrielle Reiff, Shonali Natu, Rebecca Darlay, John Burn, Carlos Echevarria
Summary: The impact of COVID-19 varies significantly among individuals and populations. This study found that differences in HLA genes may influence the clinical outcome of COVID-19 infection. Specifically, the presence of specific HLA genes, such as DRB1*04:01, was associated with the severity of COVID-19 symptoms.
Article
Orthopedics
R. M. Bhalekar, M. E. Nargol, N. Shyam, A. V. F. Nargol, S. R. Wells, R. Collier, M. Pabbruwe, T. J. Joyce, D. J. Langton
BONE & JOINT JOURNAL
(2020)
Article
Orthopedics
Giorgio Perino, Ivan De Martino, Lingxin Zhang, Zhidao Xia, Jiri Gallo, Shonali Natu, David Langton, Monika Huber, Anastasia Rakow, Janosch Schoon, Enrique Gomez-Barrena, Veit Krenn
Summary: The histopathological examination of periprosthetic soft tissue and bone has helped identify and describe the morphological features of ALTR/ARMD. A uniform vocabulary and clarification of classification parameters are considered essential for meaningful interdisciplinary evaluation.
EFORT OPEN REVIEWS
(2021)
Article
Orthopedics
R. M. Bhalekar, M. E. Nargol, N. Shyam, A. V. F. Nargol, S. R. Wells, R. Collier, M. Pabbruwe, T. J. Joyce, D. J. Langton
Summary: This study found that total knee arthroplasties with central locking mechanisms were more likely to debond from the cement mantle. The polyethylene inserts of these designs showed characteristic patterns of deformation, potentially increasing frictional torque generated at the interface. This deformation pattern may be related to the manufacturing process and exacerbated in vivo.
BONE & JOINT JOURNAL
(2021)
Article
Engineering, Mechanical
Yankui Song, Ke Xiao, Guo Xiang
Summary: The novelty of this study lies in constructing an Entropy-based wear and fluid-solid-thermal (FST) coupled model for journal bearings, and revealing the transient interaction behavior between wear evolution and FST evolution during repeated starting and stopping. The wear rate is measured experimentally, and the contact temperature, friction coefficient and normal contact force are obtained from the validated FST model. Wear tests and numerical calculations are conducted to validate the predicted wear rate and investigate the time-varying wear and FST evolution of journal bearings.
Article
Engineering, Mechanical
Xin-long Liu, Xin Guan, Yuan Zhong, Qian Xiao, Yong Cao, Wu-lue Zhang, Song Zhang, Yi-ting Zheng, Ming-sheng Gao, Dao-yun Chen, Wen-bin Yang
Summary: Gaps in the conductor rail joints of intercity trains have an impact on current transmission and the wear of carbon skateboards. These gaps decrease the coefficient of friction, increase electrical contact resistance, and affect the wear rate of carbon skateboards.
Article
Engineering, Mechanical
Yuhang Wu, Conglin Dong, Xiuqin Bai, Chengqing Yuan
Summary: The study developed a new composite material by incorporating hexagonal boron nitride (h-BN) particles into a thermoplastic polyurethane (TPU) matrix, which exhibited excellent self-lubricating properties and reduced frictional excitation forces. The addition of h-BN particles effectively reduced the coefficient of friction, decreased fluctuation amplitude, enhanced wear resistance, and attenuated vibration behaviors.
Article
Engineering, Mechanical
Tiancheng Ouyang, Xiuyang Sun, Wentao Tang, Yinxuan Li, Zhi Qun Tian, Yanzhou Li
Summary: By adding nitrogen-doped graphene and C60 nanoparticles to the lubricant, a highly efficient nano-lubricant with vibration and noise reduction properties is synthesized.
Article
Engineering, Mechanical
Xin Zhuo, Jun Cao, Haibo Huang, Li Liu, Xinkun Suo, Peiqing Ye, Zeshan Abbas
Summary: A polymer coating prepared by liquid spraying technology on the surface of 20CrMo steel demonstrates good tribological and anti-cavitation erosive properties. It can effectively replace CuPb24Sn copper alloy in valve plates for pumps under different lubrication conditions. The coating exhibits adhesive wear and reduces frictional loss, and mainly shows abrasive wear under complex working conditions. Its lipophilicity, high hardness to elastic modulus ratio, and corrosion resistance are the main influencing factors for its performance.
Article
Engineering, Mechanical
Md. Aminul Islam, Jiaren (Jimmy) Jiang, Yongsong Xie
Summary: Erosion-corrosion is a major factor in material loss and reduced useful life of hydro-transport equipment. This study evaluates the erosion-corrosion characteristics of different materials and finds that matrix wear affects the degradation of carbides. Sufficient wear and corrosion resistance in the surrounding matrix are important for good erosion-corrosion resistance.
Article
Engineering, Mechanical
Andre Dubois, Oussama Filali, Laurent Dubar
Summary: This study investigates the effect of surface roughness, contact pressure, and lubrication on the onset of galling in aluminum 6082-T6 using a pin-on-plate tribometer. The experimental results show that the roughness and lubricants play a significant role in preventing galling.
Article
Engineering, Mechanical
Jizhan Wu, Peitang Wei, Guoqiang Liu, Difa Chen, Xiuhua Zhang, Taimin Chen, Huaiju Liu
Summary: This study conducted a comprehensive evaluation of the DLC coating treatment on the loading capacity of gears and characterized the surface features and fatigue performance. The results demonstrate that DLC coating significantly improves the hardness and surface residual compressive stress of the gears, as well as enhances their contact fatigue performance.
Article
Engineering, Mechanical
Yangping Liu, Hwaran Lee, Annsley Mace, Jeremy L. Gilbert
Summary: An AFM-based single asperity tribology method was used to investigate the wear performance of carbides and base metal matrix in high carbon CoCrMo alloy. The wear behavior of the two types of carbides was stress-dependent and influenced by chemical composition. Cr-rich carbides exhibited higher wear resistance compared to Mo-rich carbides.
Article
Engineering, Mechanical
Zdenek Riha, Michal Zelenak, Akash Nag, Jakub Poloprudsky, Tomas Kruml, Sergej Hloch
Summary: This study investigates the erosion performances of a high-speed modulated jet (MWJ) and continuous water jet (CWJ). By comparing different nozzles and water jet powers, the effects of modulated and continuous jets on aluminum alloy were studied. The results show that under certain conditions, modulated jet can create deeper and sharper grooves while reducing the impact of lateral flow.
Article
Engineering, Mechanical
Chunyu Yu, Weipu Li, Yang Guo, Xianbin Sun, Fanli Hong, Ning Sun, Qinghai Zhang
Summary: This study explores the relationship between the wear rate of train brake pads and its features, and proposes a method for predicting the wear rate suitable for small sample data. Grey relational analysis and Pearson correlation analysis are used to determine the preferred features that affect the wear rate, and a BOA-BP model is established for prediction. The results show that BOA-BP exhibits better advantages in prediction with small samples.
Article
Engineering, Mechanical
Shan Yin, Xin Zhao, Shuangchao Huang, Zefeng Wen, Xuesong Jin
Summary: This study simulated the rolling contact of a driving wheelset over tangent and curved tracks at a speed up to 500 km/h using an explicit finite element approach to derive creep curves. The comparison between quasi-steady curves and transient curves in the presence of rail corrugation helped to identify cases where traditional theories are inapplicable and where transient effects must be considered. Additionally, the study further analyzed the influence of middle/high-frequency vibrations in the presence of rail corrugation.
Article
Engineering, Mechanical
Jiyao Zhang, Yuanlie Yu, Junlei Tang, Yingying Wang, Honggang Sun, Kaikai Song, Jianhong Gong, Pingping Liu, Xiaoming Liu, Lina Hu, Parthiban Ramasamy, Juergen Eckert
Summary: The influence of high-carbon addition on the microstructure, hardness, and wear behavior of CoCrNi alloy was investigated. It was found that the addition of carbon resulted in the formation of carbide particles, enhancing the hardness and improving the wear resistance. Fracture and detachment of hard carbides during friction introduced additional abrasive particles, transitioning the wear mechanism from adhesive-dominated to abrasive-dominated.
Article
Engineering, Mechanical
Yanfei Liu, Shengtao Yu, Ruize Zhang, Xiangyu Ge, Wenzhong Wang
Summary: This study reports the tribological behavior of nanodiamond plate (NDPL) as a nanoadditive for the first time and compares it with nanodiamond particles (NDPA). The results show that NDPL provides better lubrication performance at higher concentrations, and the sliding between NDPLs and the structural transformation from sp3 to sp2 carbon play a crucial role in lubrication and wear resistance.