Low-Dose Radiation Therapy (LDRT) for Osteoarthritis

Osteoarthritis can make everyday movement painful. Low-dose radiation therapy (LDRT) is a gentle treatment that can help lower inflammation in a joint, which may reduce pain and improve mobility. Astera Health now offers LDRT as another option for certain patients.

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What is LDRT?

LDRT is a treatment that uses a very low dose of radiation aimed at the sore joint. The goal is to help calm inflammation, so the joint may feel better and move easier.

Who may benefit from LDRT?

LDRT is not usually a first step. It may be a good option for people who:

  • Have osteoarthritis pain that has not improved with other treatments
  • Want a non-surgical option
  • Are looking for another path when options feel limited

In general, this treatment is recommended for patients over age 40. Your care team will review your health history to see if LDRT is right for you.

Which joints can be treated?

LDRT may help osteoarthritis pain in several joints, including:

  • Hands/wrists
  • Foot/ankle
  • Knee
  • Hip

What results can patients expect?

Many patients report:

  • Less pain
  • Better movement
  • Improved day-to-day function

Studies report that about 50% to 70% of patients have meaningful improvement.

LDRT is:

  • Non-invasive (no incisions, no injections)
  • Done in short visits (typically under 15 minutes)
  • Given over 6 treatment sessions across about 2 weeks (on non-consecutive days)

Your team helps you get positioned comfortably, then the treatment is delivered to the joint area.

Yes. In some cases, LDRT can be done again if symptoms return. Repeat treatment is often considered about 6 months after the first course, if needed.

We offer the latest in precision cancer treatment:

  • Linear accelerators with high-definition beam targeting
  • PET/CT imaging for precise diagnosis and monitoring
  • Electronic brachytherapy for localized radiation treatment
  • Real-time image-guided radiation therapy (IGRT)

Astera Health has begun offering LDRT for osteoarthritis. One treatment course is now complete, including our first finished case for a bilateral knee patient referred by Dr. Robertson.

Frequently Asked Questions

Will I feel anything during treatment?

Most people do not feel anything during treatment. It’s quick and painless.

Will this affect my daily routine?

Most patients return to normal activities right after their appointment.

Is this a replacement for joint replacement surgery?

LDRT is a non-surgical option that may help reduce pain and improve movement. Your provider can help you compare options.

Getting Started

LDRT is offered for certain patients and typically requires a provider referral. If you’re interested, we can help you understand next steps and whether this option may fit your needs.

Call to ask about LDRT for osteoarthritis: 218-631-3510