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  • About Arthritis
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    woman holding her wristWhat Is Arthritis?

    Arthritis is not one disease. Learn about the different types of arthritis, how they differ and why it’s important.

    microbesInflammation and the Immune System

    Body-wide inflammation is at the root of most chronic diseases — and you may have more control over it than you think.

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    A new arthritis diagnosis can be overwhelming. These tips can help.

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    Woman with upset stomachMicrobiome, Gut Health & Arthritis

    Microbiome, microbes, microorganisms – these terms may be confusing, but the types of bacteria living in and on our bodies can impact arthritis. Learn what helps or harms the microbiome and the health of your gut and discover dietary changes that can make a difference. This episode was originally released on January 19, 2021.

    woman consoling anotherArthritis and Mental Health

    Learn about the connection between arthritis, depression and anxiety and how these conditions can make your arthritis worse.

    Woman ExercisingYour Exercise Solution (YES)

    Movement is the best medicine, even when your joints hurt. Your Exercise Solution (YES) is a resource to help you create a physical activity routine with modifications developed and approved by physical therapists.

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    Join the movement and make an impact by honoring those who rock your world at the Arthritis Foundation’s signature walk event, Walk to Cure Arthritis. Register as an individual or form a team and Rock the Walk in your community!

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Does Diabetes Raise Knee Replacement Risks?

Learn more about studies exploring the relationship between diabetes and knee surgery outcomes for people who also have arthritis.

When arthritis makes it too painful to walk or climb stairs, knee replacement surgery could help make getting around more comfortable. Yet this surgery, like any other procedure, comes with risks that may be more pronounced if you also have diabetes.

It’s an important issue to consider since about half of people with diabetes also have arthritis, and many may eventually need a new knee or two.

 

Possible Diabetes-related Surgery Complications

Two studies published in the Bone and Joint Journal in 2014 and 2009 – from Sichuan University in China and Duke University in North Carolina – have suggested that people with diabetes face a significantly higher risk of postsurgical complications. These could include wound infection, stroke, deep vein thrombosis (blood clot), fracture around the implant and joint loosening, particularly when the patient’s diabetes isn’t well controlled.

High blood sugar, the hallmark of diabetes, is thought to cause surgical complications through its adverse effects on many organs and processes in the body. 

 

No Surgery Complications for Patients in Kaiser Study 

A large 2013 study published in The Journal of Bone & Joint Surgery failed to find any association between diabetes and negative surgical outcomes. In that study, researchers retrospectively reviewed the electronic health records of more than 40,000 Kaiser Permanente patients who had a knee replacement. However, patients with diabetes in the Kaiser study were generally healthier, tended to have well-controlled diabetes, and had better outcomes overall. The rarity of negative outcomes and uncontrolled diabetes in the study made it harder for the researchers to draw statistically significant conclusions.

“Although the [Kaiser] study suggests that you don’t have to postpone elective surgery for total knee replacement if diabetes is uncontrolled, it’s important to remember that this is a retrospective study that is missing [some] very crucial information, such as the type of diabetes treatment, duration of diabetes, and the status of diabetes control during hospitalization when [insulin therapy] can rapidly improve blood glucose levels,” says Osama Hamdy, MD, PhD, medical director of the Obesity Clinical Program at the Joslin Diabetes Center in Boston and associate professor at Harvard Medical School. 

 

Does Controlling Diabetes Lead to Better Outcomes?

The Kaiser study didn’t find any difference in outcomes between people with uncontrolled and controlled diabetes. The authors based diabetes control on hemoglobin A1c levels (commonly known as HbA1c or A1c) – a measure of average blood sugar levels during the previous three months. They considered an A1c level of 7 percent or higher uncontrolled diabetes, and a level of less than 7 percent controlled diabetes.

However, two studies from Korea did correlate blood sugar control with knee replacement surgery outcomes. Those reports, published in Clinical Orthopaedics and Related Research in 2015 and Clinics in Orthopedic Surgery in 2013, found that people with an A1c level of 8 or higher were more likely to develop wound infections than those with lower numbers. 

 

Before You Have Surgery

Although further research is needed to confirm exactly how diabetes and its control might affect knee replacement surgery results, Annette L. Adams, PhD, research scientist at the Kaiser Permanente Southern California Department of Research and Evaluation in Pasadena and lead author of the Kaiser study, says diabetes should still be an important consideration as people plan for their procedure. “Doctors and patients need to be mindful of the presence of diabetes when considering major surgery.” 

Joint Surgery
View All Articles
Total Knee Replacement Surgery Considerations

Joint Surgery

Total Knee Replacement Surgery Considerations
Learn more about the pros and cons of total knee replacement surgery for patients looking for pain relief and to renew their active lifestyles.
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Heart Risks With Joint Replacement Surgery

Joint Surgery

Heart Risks With Joint Replacement Surgery
Lower your chances of potentially serious heart complications before, during and after joint replacement surgery.
Read More
Making Sense of Your Insurance
Choose the right coverage, reduce costs and minimize claim denials with these helpful tips.
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Meet Our Partners

As a partner, you will help the Arthritis Foundation provide life-changing resources, science, advocacy and community connections for people with arthritis, the nations leading cause of disability. Join us today and help lead the way as a Champion of Yes.

Trailblazer

Our Trailblazers are committed partners ready to lead the way, take action and fight for everyday victories. They contribute $2,000,000 to $2,749,000

Visionary

Our Visionary partners help us plan for a future that includes a cure for arthritis. These inspired and inventive champions have contributed $1,500,00 to $1,999,999.

Pioneer

Our Pioneers are always ready to explore and find new weapons in the fight against arthritis. They contribute $1,000,000 to $1,499,999.

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Our Pacesetters ensure that we can chart the course for a cure for those who live with arthritis. They contribute $500,000 to $999,000.

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Our Signature partners make their mark by helping us identify new and meaningful resources for people with arthritis. They contribute $250,000 to $499,999.

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Our Supporting partners are active champions who provide encouragement and assistance to the arthritis community. They contribute $100,000 to $249,999.

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