About Radiant Joint Alliance
A nonprofit initiative dedicated to providing information about low-dose radiation therapy (LDRT) for osteoarthritis
Our Nonprofit Status
Radiant Joint Alliance is a tax-exempt 501(c)(3) public charity. The IRS recognized our status effective June 19, 2026. Our EIN is 42-3274965.
We are run by volunteers. There are no shareholders here and nothing on this site is for sale. Everything we publish exists for one reason: to help patients understand their options. Donations are tax-deductible as allowed by law. They pay for the practical stuff: keeping the website online, keeping the directory up to date, and printing and mailing materials to community groups.
One thing we want to be clear about: we provide education, not medical care. We do not diagnose anyone or recommend treatment for any individual. Our job is to give you solid, honest information so you can have a better conversation with your own doctor. Support our work →
Why We Started This
LDRT is available at a growing number of hospitals and radiation oncology practices across the United States. Major health systems, including MD Anderson, Penn Medicine, and Cleveland Clinic, now offer it for selected patients with osteoarthritis. It's been used in parts of Europe for decades.
Despite that, most patients, caregivers, and even many doctors have never heard of it. Joint pain is usually managed by primary care, orthopedics, or rheumatology, while radiation is delivered by an entirely different specialty. Those two worlds rarely talk to each other, and that gap is exactly what this site exists to close.
We built a plain-language explanation of what LDRT is, what the evidence actually shows, and a directory of hospitals and practices that offer it, so patients can walk into their next appointment with a real question to ask.
What We Do
- Provide clear, reliable information about LDRT and other arthritis treatment options
- Share educational materials through senior centers, assisted living communities, libraries, YMCAs, other community organizations, and local health events
- Maintain a nationwide directory of hospitals and radiation oncology practices offering LDRT
- Help patients, caregivers, and healthcare professionals learn about this treatment option
- Support community outreach through student ambassadors and local partnerships
Medical content on this site is reviewed by our Medical Advisory Board of board-certified radiation oncologists. See our programs in detail →
Reviewed by Practicing Physicians
The medical articles on this site are checked for accuracy by our Medical Advisory Board. These are radiation oncologists who treat patients with low-dose radiation therapy in their own practices, including Scot Ackerman, MD, FACR, Medical Director of Ackerman Cancer Center in Jacksonville, Florida, and Dr. Gregory Alexander, Assistant Professor at Thomas Jefferson University and enterprise physician lead for LD-RT for osteoarthritis there.
That matters to us because we want what you read here to reflect how this treatment is actually used, not just what papers say about it. Meet our medical advisors →
What to Do Next
Our Mission
Why we exist, what we believe, and what we promise our readers.
Our Programs
Education, the national directory, and community outreach in detail.
What Is LDRT?
How the treatment works, the typical schedule, and what the evidence shows.
Am I a Candidate?
What programs generally look for before recommending LDRT.
Is It Covered by Insurance?
What Medicare and most commercial plans typically cover.
What to Expect
What a typical LDRT appointment and course of treatment looks like.
LDRT Side Effects
What's known about safety and the most commonly reported side effects.
LDRT Success Rates
What the published response and pain-relief rates actually show.
Arthritis Basics
How common forms of arthritis differ and when to seek care.
Find a Location
Browse confirmed hospitals and centers offering LDRT.