Microtextured CoCrMo alloy for use in metal-on-polyethylene prosthetic joint bearings: Multi-directional wear and corrosion measurements
نویسندگان
چکیده
منابع مشابه
Influence of hip joint simulator design and mechanics on the wear and creep of metal-on-polyethylene bearings
Hip joint simulators are used extensively for preclinical testing of hip replacements. The variation in simulator design and test conditions used worldwide can affect the tribological performance of polyethylene. The aim of this study was to assess the effects of simulator mechanics and design on the wear and creep of ultra-high-molecular-weight polyethylene. In the first part of this study, an...
متن کاملIntergranular pitting corrosion of CoCrMo biomedical implant alloy.
CoCrMo samples of varying microstructure and carbon content were electrochemically corroded in vitro and examined by scanning electron microscopy and electron backscatter diffraction techniques. The rate of corrosion was minimized (80% reduction from icorr = 1396 nA/cm(2) to icorr = 276 nA/cm(2) ) in high-carbon CoCrMo alloys which displayed a coarser grain structure and partially dissolved sec...
متن کاملWear-Corrosion Synergism Influences the Performance of High-Carbon and Low-Carbon CoCrMo
INTRODUCTION Recently, the popularity of Metal-on-Metal (MoM) hip bearings have diminished due to the concerns with generated wear debris and metal ion release that cause a negative response in the surrounding tissues. MoM bearings are typically manufactured from two types of metal alloys, lowcarbon (LC) and high-carbon (HC) CoCrMo. However, little is known about the in-vivo behavior of the two...
متن کاملThe effect of albumin and fibrinogen on the corrosion and metal release from a biomedical CoCrMo alloy
Corrosion and metal release mechanisms of CoCrMo alloys are at human biological conditions not fully understood. The main objective of this master thesis was to investigate whether the Vroman effect influences the extent of metal release from CoCrMo alloy in mixed protein solutions. The project focuses on the corrosion properties and release of cobalt (Co), chromium (Cr) and molybdenum (Mo) fro...
متن کاملMetal-on-metal joint bearings and hematopoetic malignancy
This is a review of the hip arthroplasty era. We concentrate on new metal bearings, surface replacements, and the lessons not learned, and we highlight recent reports on malignancies and joint implants. A low incidence of blood malignancies has been found in bone marrow taken at prosthetic surgery. The incidence is increased after replacement with knee implants that release very low systemic le...
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ژورنال
عنوان ژورنال: Tribology International
سال: 2018
ISSN: 0301-679X
DOI: 10.1016/j.triboint.2018.04.007