Article
Engineering, Biomedical
Dmitry Royhman, Robin Pourzal, Deborah Hall, Hannah J. Lundberg, Markus A. Wimmer, Joshua Jacobs, Nadim J. Hallab, Mathew T. Mathew
Summary: This study investigates the effects of microgrooves on the fretting-corrosion behavior of hip implant materials. Results show significant differences in electrochemical and mechanical responses between machined and polished surfaces. Machined surfaces reduce overall dissipated friction energy under acidic conditions.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Engineering, Mechanical
Annsley Mace, Jeremy L. Gilbert
Summary: Fretting and corrosion of metallic medical devices significantly degrade their performance. This study investigates the contact mechanics and tribocorrosion characteristics of single asperity hard-metal surfaces in air and solution. The results show that single asperities engaged with metal under very low loads rapidly generate extensive debris and plastic deformation.
Article
Materials Science, Multidisciplinary
A. Costa, F. Viana, F. Toptan, J. Geringer
Summary: Highly porous Ti was found to exhibit significant load- and amplitude-dependent responses under fretting-corrosion conditions, with different slip regimes and OCP variations. The promising structure of this Ti was preserved even after 16 hours of fretting-corrosion under severe solicitations.
Article
Engineering, Biomedical
Jacob Manthe, Kai Yuan Cheng, Divya Bijukumar, Mark Barba, Robin Pourzal, Mozart Neto, Mathew T. Mathew
Summary: This study investigated the fretting-corrosion behavior of cobalt-chromium-molybdenum (CoCrMo) alloy with specific microstructural features. The results showed that the banded microstructure was more susceptible to corrosion damage compared to the unbanded microstructure under certain electrolyte conditions.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Qiong Wang, Felipe Eltit, Renfei Feng, Donald Garbuz, Clive Duncan, Bassam A. Masri, Nelson Greidanus, Michael E. Cox, Rizhi Wang
Summary: CoCrMo alloys have excellent mechanical properties and corrosion resistance, making them widely used in total hip implants. However, the fretting corrosion particles from CoCrMo used in hip implants have caused adverse local tissue reactions in patients. This study analyzed the chemical nature and formation mechanisms of these particles by analyzing the corrosion particles retrieved from failed CoCrMo hip implants and conducting in vitro fretting experiments. The research clarified the formation process of these particles and provided proper particle processing protocols for future mechanistic studies.
Article
Engineering, Biomedical
Chen-En Tsai, James Hung, Youxin Hu, Da-Yung Wang, Robert M. Pilliar, Rizhi Wang
Summary: The study utilized arc-PVD to deposit TiSiN and ZrN hard coatings on CoCrMo substrates, showing improved fretting corrosion resistance. Fretting tests in simulated body fluid demonstrated significant reductions in fretting volume loss and metal ion release with the hard coatings.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Engineering, Biomedical
Annsley Mace, Jeremy L. Gilbert
Summary: Additive manufacturing (AM) of CoCrMo metallic implants is growing in the orthopedic and dental fields due to its excellent corrosion resistance and mechanical properties. This study compared the tribological and tribocorrosion characteristics of AM CoCrMoW alloys with wrought LC CoCrMo (ASTM F-1537), and found that AM alloy has similar wear and tribocorrosion resistance to LC CoCrMo. AM would be ideal for patient specific dentistry or orthopedics that require precise, complex geometries.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Y. Purandare, K. Shukla, A. Sugumaran, A. Ehiasarian, I. Khan, P. Hovsepian
Summary: The tribocorrosion performance of HIPIMS nitrided CoCrMo alloys was investigated through sliding wear corrosion experiments. The results showed that the nitrided specimens exhibited superior resistance to tribocorrosive mechanisms compared to the untreated specimens. This was attributed to the formation of a nitrided microstructure consisting mainly of expanded austenite without the detrimental CrN phase.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Biotechnology & Applied Microbiology
Khosro Fallahnezhad, Mohsen Feyzi, Reza Hashemi, Mark Taylor
Summary: Cyclic loading in the corrosive medium of the human body results in tribocorrosion at the head-neck taper junction of hip implants, affecting the local tissues. The force applied to assemble the junction plays a significant role in the mechanics and tribocorrosion damage. This study investigates the influence of assembly force on the tribocorrosive behavior, considering both mechanical and chemical material removal. The findings indicate that a minimum assembly force is required to maintain interlock, and the computational model successfully predicts damage patterns at the retrieved head-neck interface.
BIOENGINEERING-BASEL
(2022)
Review
Chemistry, Physical
Marianna Arakelyan, Gianrico Spagnuolo, Flavia Iaculli, Natalya Dikopova, Artem Antoshin, Peter Timashev, Anna Turkina
Summary: Metal alloys, commonly used in dental practice, may release metal ions into the oral cavity and cause adverse effects on surrounding tissues and internal organs. These effects include mouth burning, potentially malignant oral lesions, and local or systemic hypersensitivity. Clear diagnostic criteria and treatment guidelines are currently lacking.
Article
Engineering, Mechanical
Mohsen Feyzi, Khosro Fallahnezhad, Reza Hashemi
Summary: This paper studies the tribocorrosion behavior of (Ti/CoCr)-on-(Ti/CoCr) under various operating parameters and identifies the most influential parameter. It is found that sliding and potential are the main parameters governing the behavior of contacts with different alloy disks.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Orthopedics
Kyosuke Kobayashi, Kenichi Kidera, Kazuteru Shiraishi, Narihiro Okazaki, Ko Chiba, Akihiko Yonekura, Makoto Osaki
Summary: This study investigated the serum metal concentrations and prevalence of adverse local tissue reaction (ALTR) in metal-on-polyethylene (MoP) total hip arthroplasty (THA) using a 9/10-mm stem trunnion. The results showed that patients with a 9/10-mm stem trunnion had higher serum cobalt and chromium levels and a higher incidence of ALTR. Therefore, careful follow-up and early revision are needed when using a 9/10-mm stem trunnion in MoP THA.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2023)
Article
Dentistry, Oral Surgery & Medicine
Annsley Mace, Piyush Khullar, Cassidy Bouknight, Jeremy L. Gilbert
Summary: This study compares the corrosion resistance of additive manufactured (AM) cobalt chromium alloys with traditional CoCrMo. The results show differences in corrosion behavior and chemical characteristics between the two alloys. AM CoCrMo alloys exhibit lower polarization resistances and higher open circuit potentials in the solution with hydrogen peroxide compared to LC CoCrMo.
Article
Engineering, Biomedical
Stephanie M. Smith, Jeremy L. Gilbert
Summary: Fretting corrosion in modular orthopedic implants can be reduced by using high-compliance interfaces, as shown in this study evaluating the interfaces under long-term conditions using a pin-on-disk fretting corrosion test apparatus. High-compliance pins experienced minimal fretting and surface damage compared to control pins, indicating the potential of reducing implant degradation and damage through geometric modifications.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2021)
Article
Engineering, Mechanical
Khosro Fallahnezhad, Mohsen Feyzi, Khashayar Ghadirinejad, Reza Hashemi, Mark Taylor
Summary: A new finite element model was proposed to study tribocorrosion at the head-neck junction of hip implants, revealing the significant contribution of chemical wear in comparison to mechanical wear. The results challenge the widely accepted assumption of neglecting chemical wear in taperosis, as chemical reactions were responsible for 32% of material loss. This FE model's predicted wear patterns were consistent with those observed in retrieved tapers.
TRIBOLOGY INTERNATIONAL
(2022)
Correction
Orthopedics
Nemandra A. Sandiford, Peter Misur, Donald S. Garbuz, Nelson V. Greidanus, Bassam A. Masri
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH
(2018)
Article
Orthopedics
Brett K. J. Kilb, Andrew P. Kurmis, Michael Parry, Karen Sherwood, Paul Keown, Bassam A. Masri, Clive P. Duncan, Donald S. Garbuz
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH
(2018)
Article
Orthopedics
Amir Herman, Anthony Albers, Donald S. Garbuz, Clive P. Duncan, Bassam A. Masri
Article
Orthopedics
Amir Herman, Bassam A. Masri, Clive P. Duncan, Nelson V. Greidanus, Donald S. Garbuz
Review
Orthopedics
Andrew P. Kurmis, Amir Herman, Adam R. McIntyre, Bassam A. Masri, Donald S. Garbuz
JOURNAL OF ARTHROPLASTY
(2019)
Article
Orthopedics
M. El-Hussein, B. Masri, C. Duncan, D. S. Garbuz
BONE & JOINT JOURNAL
(2019)
Editorial Material
Orthopedics
F. S. Haddad, B. A. Masri
BONE & JOINT JOURNAL
(2019)
Review
Orthopedics
Gerard A. Sheridan, Donald S. Garbuz, Bassam A. Masri
Summary: Recent evidence suggests a significantly lower failure rate for hybrid stems in revision TKA, with a trend favoring their use for all outcome variables assessed in this study. These findings support the recommendation for the use of hybrid stems in revision TKA whenever possible.
EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY
(2021)
Review
Orthopedics
Aresh Sepehri, Arashdeep Sidhu, Bassam A. Masri
Summary: Total hip arthroplasty (THA) is increasingly being used for managing osteoarthritis of the hip in patients with fragile or pathologic bone, thanks to advances in surgical technique and implant design. Surgeons should be prepared to evaluate and manage intraoperative iatrogenic fracture in patients with posttraumatic or congenital deformities associated with fragile or pathologic bone. Although evidence is limited, components made with computer-assisted design can be considered for this unique and highly variable patient population.
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2021)
Article
Orthopedics
D. J. Stockton, A. M. Schmidt, A. Yung, J. Desrochers, H. Zhang, B. A. Masri, D. R. Wilson
Summary: ACL rupture leads to increased contact area, posteriorly translated medial centroid, anterior tibial translation, and reduced tibial external rotation, regardless of surgical reconstruction status. These changes persist 2.7 years post-injury.
BONE & JOINT JOURNAL
(2021)
Letter
Orthopedics
Matthew D. Hickey, Carolyn Anglin, Bassam Masri, Antony J. Hodgson
CLINICAL ORTHOPAEDICS AND RELATED RESEARCH
(2022)
Article
Orthopedics
G. A. Sheridan, M. Hanlon, A. Welch-Phillips, K. Spratt, R. Hagan, J. M. O'Byrne, P. J. Kenny, A. P. Kurmis, B. A. Masri, D. S. Garbuz, C. J. Hurson
Summary: This case-control study found an association between specific HLA genotypes and the development of pseudotumours around metal-on-metal hip resurfacing procedures. Specifically, the HLA-DQB1* 05:03:01 and HLA-DRB1* 14:54:01 alleles were significantly associated with a higher risk of pseudotumour formation.
Article
Orthopedics
G. A. Sheridan, R. Moshkovitz, B. A. Masri
Summary: Simultaneous bilateral TKA can be used as an effective teaching model for trainees without any significant impact on patient clinical or functional outcomes. Excellent functional and clinical outcomes in both knees, regardless of whether the performing surgeon is a trainee or supervising surgeon, can be achieved with simultaneous bilateral TKA.
Meeting Abstract
Medicine, Research & Experimental
Nissreen Mohammad, Felipe Eltit, Donald Garbuz, Clive Duncan, Bassam Masri, Nelson Greidanus, Manju Sharma, Rizhi Wang, Michael Cox, Tony Ng
LABORATORY INVESTIGATION
(2018)