Clinical Trial on the Zirconia Femoral Component for the Gem Total Knee System total knee arthroplasty performed using implant with cobalt chrome femoral

The most popular titanium alloy in use is Ti6Al4V. Cobalt-chromium– just as widely used as titanium, cobalt-chromium is extremely inert, bio-compatible, and durable…ideal properties for a surrogate knee joint. The only potential downside here is the purported release of tiny metal ions due to friction – when you move, walk, etc.

The metals commonly used include cobalt-chromium, titanium, zirconium, and nickel. This study showed that PEEK-OPTIMA ™ has potential for use as an alternative bearing material to cobalt chrome in total knee replacement; however, the study should be considered as generation of baseline data prior to further and long-term pre-clinical testing under a wider envelope of more adverse and clinically relevant conditions. It would seem logical to simply monitor knee replacement patients for raised metal levels, but this is not as simple as it seems. The biggest culprit for toxicity seems to be cobalt-chrome but there is no generally accepted threshold beyond which serum or blood concentrations of cobalt … 2011-01-01 2018-09-11 55 y.o. Caucasian female developed a localized contact like rash in the area where she had a knee replacement two days after the surgery. Rash is very pruritic and looks like a contact dermatitis.

Doctors in Germany studied patients to determine the prevalence of sensitisation to chromium, cobalt, nickel, or a cement component in patients who received joint replacement surgery. Along with titanium, cobalt chrome is one of the most widely used metals in knee implants. There is no consensus as to which material is better and more suitable. Although the percentage of patients having allergic reactions related to the use of cobalt-chromium alloys to is very low, one area of concern is the issue of tiny particles (metal ions) that may be released into the body as a result Cobalt Poisoning in Knee Replacement Patients Cobalt poisoning joins tibial base loosening as reasons DePuy knee fails.

Recently PEEK-OP-TIMA™ has been proposed as an alternative bearing material to cobalt chrome in the femoral component of total knee replacement (Cowie et al., 2016; Rankin et al., 2016;de Ruiter

2017-09-30 Abstract. Background: Oxidized zirconium (Oxinium) was introduced as an alternative bearing surface to cobalt-chromium (CoCr) in an attempt to reduce polyethylene wear and decrease aseptic mechanical failure of total knee replacements. Metal on plastic. This is the most common type of implant.

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Metal on plastic. This is the most common type of implant. It features a metal femoral component that rides on a polyethylene plastic spacer attached to the tibial component. The metals commonly used include cobalt-chromium, titanium, zirconium, and nickel. Typically made from cobalt-chromium as this material is scratch resistant and safe for use in total knee replacements. The majority of total knee femoral components are made out of cobalt-chromium with excellent long-term success rates. This new material is used to produce components of knee implants that offer superior performance characteristics over traditional cobalt chrome surfaces due to their increased hardness, smoothness and resistance to scratching and abrasion.
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Even this small amount of nickel can cause a reaction at the site of the replacement or can cause more generalized reactions when microscopic bits of nickel are carried through the bloodstream to the kidneys Thinking about a total knee replacement?

However, not everyone loves their new knee. In fact, about 10-15 percent of people who undergo knee replacement are … 2013-05-08 Abstract.
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It is used in the new ceramic knee which uses a combination of zirconium alloy and a plastic tibial component which has replaced the cobalt chrome alloy used previously for knee implants .Researches have shown that the combination of metals like cobalt chromium alloy for femoral part and plastic tibial part in the knee implant will be effective for about 15-20years.Yet, the new designed knee

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Most devices consist of multiple components made from different medical-grade materials. Metal components usually consist of titanium or cobalt-chromium based

Therefore, the wear resistance and surface hardness of cobalt chromium alloys are of great interest for further development [122–131] . 2017-09-30 · This can cause serious reactions in patients who undergo total knee replacement surgery because some knee replacements are made of cobalt chrome that contains around 1 percent of nickel. Even this small amount of nickel can cause a reaction at the site of the replacement or can cause more generalized reactions when microscopic bits of nickel are carried through the bloodstream to the kidneys Thinking about a total knee replacement? There are a few different kinds of knee implants that are used in this procedure.