Results 51 to 60 of about 2,419 (209)

In Vitro Wear Testing of a CoCr-UHMWPE Finger Prosthesis with Hydroxyapatite Coated CoCr Stems

open access: yesLubricants, 2015
A finger prosthesis consisting of a Cobalt-chromium (CoCr) proximal component and an Ultra-high-molecular-weight-polyethylene (UHMWPE) medial component (both mounted on hydroxyapatite coated stems) was evaluated to 5,000,000 cycles in an in vitro finger ...
Andrew Naylor   +3 more
doaj   +1 more source

Ti3C2T x ‐UHMWPE Nanocomposites—Towards an Enhanced Wear‐Resistance of Biomedical Implants

open access: yesJournal of Biomedical Materials Research Part A, Volume 113, Issue 1, January 2025.
Polymeric biomedical materials, notably UHMWPE in load‐bearing joints, lack optimal mechanical and biotribological properties. This study aims to enhance Ti3C2T x ‐UHMWPE nanocomposites, improving mechanical strength, biocompatibility, and biotribological performance. Tests reveal no adverse effects on hardness, elasticity, or cytotoxicity.
Benedict Rothammer   +11 more
wiley   +1 more source

An In vitro Simulation Method for the Tribological Assessment of Complete Natural Hip Joints [PDF]

open access: yes, 2017
The use of hip joint simulators to evaluate the tribological performance of total hip replacements is widely reported in the literature, however, in vitro simulation studies investigating the tribology of the natural hip joint are limited with ...
Fisher, J, Groves, D, Williams, S
core   +1 more source

Biotribology of artificial hip joints

open access: yesWorld Journal of Orthopedics, 2015
Hip arthroplasty can be considered one of the major successes of orthopedic surgery, with more than 350000 replacements performed every year in the United States with a constantly increasing rate. The main limitations to the lifespan of these devices are due to tribological aspects, in particular the wear of mating surfaces, which implies a loss of ...
DI PUCCIO, FRANCESCA, MATTEI, LORENZA
openaire   +3 more sources

Fretting–corrosion at the modular tapers interface: Inspection of standard ASTM F1875-98 [PDF]

open access: yes, 2018
Interest in the degradation mechanisms at the modular tapers interfaces has been renewed due to increased reported cases of adverse reactions to metal debris and the appearance of wear and corrosion at the modular tapers interfaces at revision.
Anderson, J   +10 more
core   +1 more source

Influence of Neutral and Cationic Phytoglycogen Nanoparticles on Cartilage and Ocular Lubrication

open access: yesBiosurface and Biotribology, Volume 11, Issue 1, January/December 2025.
ABSTRACT Compromised hydration and biolubrication leads to untreatable disorders like osteoarthritis (OA), dry eye disease (DED) and dry mouth disease (xerostomia). Only symptomatic treatment is possible through bioactive molecules. This study aims to investigate the biolubrication properties of natural and modified phytoglycogen nanoparticles (PGNPs ...
Nikola R. Mazarevica   +5 more
wiley   +1 more source

Preliminary characterisation of the surface of cartilage following exposure to saturated and unsaturated synthetic lips [PDF]

open access: yes, 2011
Articular cartilage is covered by a microscopic structure known as surface amorphous layer. This surface structure is often the first victim of attack during cartilage degeneration, thereby resulting in a gross impairment in cartilage function such as ...
Gudimetla, Prasad   +3 more
core   +2 more sources

Degradation of alumina and zirconia toughened alumina (ZTA) hip prostheses tested under microseparation conditions in a shock device

open access: yes, 2013
This paper considers the degradation of alumina and zirconia toughened alumina vs. alumina for hip implants. The materials are as assumed to be load bearing surfaces subjected to shocks in wet conditions.
Geringer, Jean   +3 more
core   +5 more sources

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