What metal is a knee replacement made of?

Are all knee replacements titanium?

All knee replacements, partial or total, will have parts made of a few different materials (likely metals and plastic). In most cases, each component is built from titanium, cobalt-chromium alloys, or a titanium and cobalt mixed metal.

What is the best material for a knee replacement?

The metals commonly used include cobalt-chromium, titanium, zirconium, and nickel. Metal-on-plastic is the least expensive type of implant and has the longest track record for safety and implant life span.

Can you be allergic to the metal in a knee replacement?

The most common metal allergy is nickel, which is found in very small quantities in knee implants and in some hip implants. While up to 14% of people will have some reaction to certain metal allergy tests, metal allergy is a very rare cause of failure in knee replacements.

Are muscles cut during a total knee replacement?

In traditional knee replacement surgery, the surgeon makes a long incision over the middle of the knee and cuts muscles, tendons and ligaments to get to the knee joint. When more tissues, muscles and tendons are cut during surgery, the recovery is more painful and the healing process takes longer.

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Do you weigh more after a knee replacement?

Most patients actually gain weight following joint replacement surgery. Of 106 adults who had knee replacements, two-thirds gained an average 14 pounds within two years after the operation, according to a 2010 study at the University of Delaware.

What is the newest technology in knee replacement?

This latest advancement in joint replacement surgery transforms the way knee replacements are performed. “The Mako system is a revolutionary tool to help joint surgeons be more precise in placing implants to achieve the most appropriate, balanced position possible,” explained orthopedic surgeon Harold Cates, MD.

How long do titanium knee replacements last?

In 85% to 90% of people who have a total knee replacement, the knee implants used will last about 15 to 20 years. This means that some patients who have a knee replacement at a younger age may eventually need a second operation to clean the bone surfaces and refixate the implants.

Are there non metal knee replacements?

The metal-free BPK-S ceramic total knee replacement system proved to be a safe and clinically efficient alternative to metal implants in this short-term follow-up study.

Does surgical titanium contain nickel?

Look for jewelry made from such metals as nickel-free stainless steel, surgical-grade stainless steel, titanium, 18-karat yellow gold, or nickel-free yellow gold and sterling silver. Surgical-grade stainless steel may contain some nickel, but it’s generally considered hypoallergenic for most people.

What happens if your body rejects your knee replacement?

The most common symptoms of a failed knee implant are pain, decrease in joint function, knee instability, and swelling or stiffness in the knee joint.

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