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

Font Size

Knee Replacement Often Beneficial for RA: Study

Patients did as well as those with osteoarthritis, but same did not hold true for hip replacement

WebMD News from HealthDay

By Maureen Salamon

HealthDay Reporter

THURSDAY, June 20 (HealthDay News) -- The common belief that rheumatoid arthritis patients don't benefit from knee replacement surgery as much as those with the more common osteoarthritis has been challenged by the findings from a pair of studies by New York City scientists.

Researchers from the Hospital for Special Surgery also found, however, that rheumatoid arthritis patients who underwent a total hip replacement didn't fare as well as those with osteoarthritis, though they did experience improvements in pain and function.

"One thing that we can clearly pull out of this research is that the levels of pain and function among those with rheumatoid arthritis were so much worse preoperatively at the point they approached joint replacement," explained rheumatologist Dr. Susan Goodman, the lead author of both studies. "They may be postponing or not getting to surgery until they're really in a much worse state. Perhaps that's one of the explanations for the results . . . perhaps it's their generalized disease. We really just don't know yet."

Goodman presented the research last week at the European League Against Rheumatism's annual meeting in Madrid, Spain. Research presented at scientific conferences has typically not been peer-reviewed or published and is considered preliminary.

Affecting one of every five adults, along with 300,000 children, arthritis is the leading cause of disability in the United States, according to the Arthritis Foundation. Osteoarthritis, the most prevalent form, progressively breaks down cartilage in the joints due to wear and tear, while rheumatoid arthritis is an autoimmune disease marked by inflammation of the membranes surrounding joints. Along with bringing chronic pain, both types can result in joint destruction.

Historically, rheumatoid arthritis patients have had worse outcomes after joint replacement surgeries than osteoarthritis patients, according to the study authors, but more effective drugs developed over the last two decades have helped them to better control their disease.

In the first study, Goodman and her team analyzed joint replacement registry data to identify 178 rheumatoid arthritis patients and more than 5,200 osteoarthritis patients who underwent knee replacement surgery. Though rheumatoid arthritis patients had worse pain and function before surgery, patients in both groups had similar satisfaction rates after surgery.

Today on WebMD

rubbing hands
Avoid these 6 common mistakes.
mature couple exercising
Decrease pain, increase energy.
mature woman threading needle
How much do you know?
Swelling, fatigue, pain, and more.
Lucille Ball
Hand bones X-ray
prescription pills
Woman massaging her neck
woman roasting vegetables in oven
Woman rubbing shoulder
doctor and patient hand examination