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04 896 0200

Level B3, Bowen Specialist Medical Centre,
98 Churchill Drive, Crofton Downs,
Wellington 6035, New Zealand
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What is osteoarthritis?

Osteoarthritis is a condition that affects the joints, causing them to become stiff and painful. It most commonly affects the hips, knees, and small joints in the hands, but may occur anywhere in the body. It’s the most common form of arthritis, affecting tens of millions of people worldwide, more women than men.

Common symptoms of osteoarthritis

People with osteoarthritis may experience:

  • Continuous or worsening joint pain

  • Stiffness and difficulty moving the affected joint

  • Visible swelling or changes in joint shape

Symptoms often develop gradually and vary from person to person. Early on, pain may appear only during movement, but as the condition progresses, pain can remain even at rest.

Causes of osteoarthritis

While the exact causes of osteoarthritis are unknown, there are several risk factors:

  • Genetics: 60% of people have a relative with the condition

  • Repetitive use: strain on the joints from work, sport, or strenuous exercise

  • Hormonal changes: menopause-related decline in the hormone oestrogen

  • Injury: previous fractures or damage to joints

  • Weight: excess weight increases stress on joints and can speed up the progression of the condition

Treatment for osteoarthritis

Low-dose radiotherapy (LDRT) is a non-invasive treatment that may help people with osteoarthritis walk further, move more freely, and live with less pain. Unlike the higher doses of radiation used to treat cancer, LDRT uses a much lower, highly targeted dose. It’s designed to complement, rather than replace, standard therapies, offering an additional treatment pathway for people who continue to have symptoms despite physiotherapy, medication, or other conservative measures.

International research and clinical experience show that LDRT may:

  • Reduce pain and inflammation

  • Improve joint function and mobility

  • Potentially slow the progression of osteoarthritis

LDRT has been safely used overseas for more than a decade, with minimal side effects due to its tiny dose of radiation. It may be an option for people who:

  • Have not found relief with physiotherapy or medication

  • Are not suitable candidates for surgery

  • Prefer an alternative to long-term pain medication or surgery

We’re harnessing the power of precision radiation therapy to bring relief to people living with chronic pain caused by osteoarthritis. For patients who continue to have symptoms despite physiotherapy, medication, or other conservative measures, it’s the chance to reclaim mobility, comfort, and quality of life.

~ A/Prof Peter Gorayski
Icon Cancer Centre, South Australia

By helping reduce pain and improve mobility, LDRT may support a more active, comfortable lifestyle and help people enjoy everyday activities again.

Who might benefit from LDRT?

LDRT may be considered in people aged 40+ with:

  • Mild to moderate osteoarthritis, as confirmed by x-ray, or

  • Moderate to severe pain despite medication, and/or physiotherapy.

We’ll will meet with you, review your symptoms and scans, and help decide whether LDRT is the right option for you.

What to expect

At Icon, we understand that starting a new treatment can feel overwhelming. We’ll guide you through each step, tailoring your treatment to your individual needs.

  • Consultation and assessment – Meet with a specialist to discuss your symptoms, review your medical history, and determine if LDRT is suitable for you. is suitable for you.

  • Personalised treatment plan - Design a plan focused on reducing pain and improving mobility.

  • Treatment sessions - LDRT sessions are quick, painless, and typically have minimal side effects.

  • Ongoing support - We’ll monitor your progress and be available to answer questions at every stage of your treatment

We're here for you

Have questions about accessing cancer treatment or becoming a patient? We're here to help. From understanding your diagnosis to exploring your care options, our team will guide you every step of the way.

For patients

If you’d like to know whether LDRT might be right for you, our team is here to help. We can explain what to expect, answer your questions, and guide you on the next steps. Contact our centre to speak with one of our care team members.

Contact us

For referrers

Referrals can be made directly to our doctors or through major referral platforms.

Make a referral

Frequently asked questions

References

More information

Become a patient

Find out how to become a patient at Bowen Icon Cancer Centre, or request more information.

Make an enquiry

Patient stories

Our patients share their inspiring journeys of courage, resilience and surviving cancer.

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Your care team

Icon’s cancer care team are here to support you with compassion, knowledge and hope.

Meet our care specialists

For family and whānau

While we understand that your loved one is your priority, it’s important to make time for yourself too.

Advice for carers