Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Arthritis Health Center

Font Size

Metal-on-Metal Hip Implants Have Higher Fail Rates

Study: All-Metal Hip Replacements Fail Faster Than Other Types

Keep It in Perspective

Experts who were not involved in the study had mixed reactions to the results.

Joshua J. Jacobs, MD, chairman of the department of orthopedic surgery at Chicago’s Rush University, and a vice president of the American Academy of Orthopedic Surgeons, said the findings should be kept in perspective.

“This clearly is a higher [failure] rate in some metal-on-metal large head-hip replacements compared to other bearing combinations,” Jacobs says.

But, he says, the vast majority of patients still have good results with their metal implants after five years.

“It’s not like half of the implants are failing or even a quarter or even 10%. It’s in the area of 6%. That’s not what we as orthopedic surgeons want. We would like a 0% failure rate at five years. That’s what we strive for in our patients, and we know we can’t get that just because of the nature of the surgery,” says Jacobs, who has consulted for orthopedic manufacturers in the past. He says he hasn’t received any personal support from device manufacturers in more than a year.

But other studies have shown that failure rates for metal-on-metal implants rise the longer a patient has the joint.

Some studies have shown nearly twice as many patients with metal-on-metal implants need corrective surgeries as patients who get joints made from other materials.

Patient Advice

Jacobs says patients with metal-on-metal implants should return to their surgeon for regular checkups, even if they aren’t having any problems.

Patients who are having pain or difficulty walking or moving should see their doctors immediately.

Other experts think the issue is more urgent.

“We have half a million patients who have metal-on-metal hips in the U.S. We need to focus investigation on this issue,” says Art Sedrakyan, MD, PhD, an orthopedic surgeon at Weill Cornell Medical College in New York.

Sedrakyan wrote a commentary on the study but was not involved in the research.

Based on this study and mounting evidence against metal-on-metal designs, Sedrakyan says use of the implants should stop.

Today on WebMD

Mature woman exercise at home
Hint: Warming up first is crucial.
feet with gout
Quiz yourself.
woman in pain
One idea? Eat fish to curb inflammation.
senior couple walking
Can you keep your RA from progressing?
xray of knees with osteoarthritis
close up of man wearing dress shoes
feet with gout
close up of red shoe in shoebox
two male hands
Woman massaging her neck
5 Lupus Risk Factors