
Low-dose radiation therapy
Musculoskeletal conditions, like osteoarthritis, can be painful and make it hard to move. At the Allina Health Cancer Institute, we do more than treat cancer. Our radiation therapy departments in Minneapolis and St. Paul offer low-dose radiation therapy for patients who have joint pain and have not found relief from other treatments.
Low-dose radiation therapy can help reduce inflammation and pain, improving patients' quality of life without causing serious side effects.
Learn more about this treatment below.
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What is low-dose radiation therapy?
Low-dose radiation therapy is a proven treatment that uses a radiation machine to deliver a low dose of radiation to an affected joint or other body part. Treatment is administered every other day over the course of two or three weeks, for a total of six sessions. Therapy sessions average 15 minutes in length. Multiple joints can be treated in the same session.
How does low-dose radiation therapy work?
Low-dose radiation therapy targets the inflammatory cells within the affected joint, decreasing pain signals and improving joint function. This therapy does not change the joint structure itself but helps relieve the inflammation that contributes to pain.
Benefits of low-dose radiation therapy
Some of the benefits of low-dose radiation therapy include:
- Reduced Pain: Multiple studies have shown that nearly 70% of patients treated had improvement in their pain.
- Lasting Pain Relief: Most patients reported relief lasting up to two years after their first treatment.
- Non-Invasive: Low-dose radiation therapy is non-invasive and painless. Patients can continue daily activities while receiving treatment.
- Potential to delay or avoid invasive procedures.
- Improved joint mobility.
- Minimal Side Effects: The treatment has no reported acute or long-term side effects. Mild skin redness is possible, but rare.
Conditions treated with low-dose radiation therapy
Low-dose radiation therapy can be used to manage pain in the hands, fingers, knees, hips, ankles, feet and shoulders. Conditions treated include:
- Osteoarthritis
- Tendonitis
- Bursitis
- Plantar Fasciitis
- Achilles Tendonitis
Who is eligible for treatment?
Patients generally must be aged 50 or older and have not experienced the benefits of standard care treatments. Patients under the age of 50 may be eligible if they experience persistent pain after conservative therapies or if their condition affects their livelihood.
Low-dose radiation therapy is not effective for rheumatoid or psoriatic arthritis. It is also not recommended for spinal conditions.
Source: Allina Health Cancer Institute
Reviewed by: Allina Health Cancer Institute
First published: 5/16/2025