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Low-dose radiotherapy for osteoarthritis - an anti-inflammatory dose, six times.

Six short fractions of 0.5–1.0 Gy for painful hand, knee, hip or shoulder osteoarthritis. Long-established in Germany, quietly available in the UK. No sedation, no needles, no immediate side effects - with a gradual response over six to twelve weeks.

See indicative pricing
A radiographer guides a patient onto the bed of an advanced 3 Tesla MRI scanner in a London imaging suite

Indicative pricing

What a private course of LDRT costs in the UK.

Indicative ranges across the small handful of UK centres offering LDRT for OA.

In short

£1,500–£4,000, two weeks of five-minute visits.

Item Indicative range
Clinical oncology consultation £280–£450
Planning CT for LDRT £400–£700
Single-joint LDRT course (6 fractions) £1,500–£4,000
Repeat course at 3 months (same joint) £1,500–£4,000
Bilateral joints (e.g. both hands) £2,800–£7,000
Follow-up review at 12 weeks £180–£320

Prices vary by centre and by whether one or both sides are treated. LDRT for OA is rarely covered on standard UK health insurance because it sits outside oncology cover - most patients self-pay. We tell you either way before you book.

The problem

The gap between an injection that stopped working and a joint replacement you are not ready for.

For many people with painful OA, the next step is quietly missing. LDRT is one of a small handful of options that sit in that gap - and it is under-offered in the UK.

  • A gentle, non-drug option

    No needle in the joint, no cortisone, no NSAIDs. For patients who cannot tolerate - or would rather avoid - repeated injections and analgesia.

  • Two weeks of five-minute visits

    Six short fractions, three times a week. You feel nothing on the couch, drive yourself home, and keep working through it.

  • Response builds over 6–12 weeks

    Not an instant fix. Pain relief settles in gradually across the second and third months - a pattern we set expectations around before you spend anything.

When it helps

When LDRT is worth a serious look.

The joints and situations with the best evidence, plus the red flag that means it is not OA at all.

  • Painful hand OA (base of thumb, DIPs, PIPs)

    The best-studied indication. Trapeziometacarpal and finger-joint osteoarthritis with persistent pain despite splints, NSAIDs and hand therapy.

  • Knee OA not yet for replacement

    Mild-to-moderate radiographic disease with pain, where you want to postpone or avoid a knee replacement - often after injections have stopped working.

  • Hip OA in patients who cannot have surgery

    Painful hip OA in patients too frail, too anticoagulated, or too reluctant for arthroplasty - LDRT as a non-surgical bridge.

  • Shoulder OA and rotator-cuff arthropathy

    Glenohumeral OA with night pain that limits sleep and function - a smaller evidence base but a reasonable option in the right hands.

  • Failed injections and physio

    You have already had two or three steroid or hyaluronic acid injections with diminishing return, and you want a non-drug, non-surgical option.

  • Enthesopathy and heel pain

    Plantar fasciitis, Achilles enthesopathy and lateral epicondylitis (tennis elbow) - related indications with a longer German tradition than OA itself.

  • You want to keep working

    Six 10-minute visits over two weeks fit around office hours in a way that surgery does not. There is no recovery period afterwards.

  • Red flag: inflammatory arthritis, infection, malignancy

    A hot, swollen joint, fever, night sweats, unexplained weight loss or bone pain at rest are not OA - they need same-week rheumatology or oncology review, not LDRT.

Course options

One schedule, several ways to use it.

The 6-fraction, 0.5–1.0 Gy course is the workhorse. Everything else is a variation - repeat, bilateral, or how it fits alongside physio, injections and surgery planning.

  • Standard 6-fraction schedule

    Six sessions of 0.5 Gy or 1.0 Gy, three times a week over two weeks. The workhorse regimen used in the German trials and in almost every UK case.

  • Very-low-dose (0.3 Gy) protocol

    A lighter total dose (1.8 Gy across 6 fractions) explored in some centres. The evidence is thinner and most UK oncologists stay with 0.5 Gy.

  • Repeat course at 12 weeks

    A second identical course three months later for partial responders. The German data show this roughly doubles the proportion of patients reporting meaningful pain relief.

  • Bilateral treatment in one visit

    Both hands, both knees or a hand-and-elbow combination in the same trip. Each joint has its own plan and set-up - the appointment simply runs longer.

  • Combining with usual care

    LDRT does not replace physiotherapy, weight management or analgesia - it sits alongside. Continue what is helping; stop nothing without discussion.

  • When surgery is coming anyway

    If a joint replacement is planned within six months, LDRT is usually not worth the money - the surgery will settle the pain. It works best as a delay-or-avoid strategy.

  • Alternatives worth trying first

    Weight loss, structured physiotherapy, topical NSAIDs, image-guided intra-articular injection and - for knees - genicular nerve ablation. LDRT sits after these, not before.

  • Availability across the UK

    Only a handful of UK private centres routinely deliver LDRT for OA. NHS access is rare. We know which units genuinely have the pathway set up.

Safety and what to expect

What a course of LDRT actually feels like - honestly.

LDRT is remarkable for how uneventful it feels on the day. The things worth planning are the response window, the age discussion, and knowing when to stop rather than repeat.

  • You feel nothing on the couch

    No heat, no needle, no numbness, no immediate change in pain. Each fraction is five to ten minutes. Most patients drive themselves and go back to work the same morning.

  • No immediate side effects to speak of

    Unlike cancer radiotherapy, LDRT for OA does not cause skin reddening, hair loss, fatigue or bowel symptoms at these doses. The whole course is remarkably uneventful.

  • Response is gradual - 6 to 12 weeks

    Do not expect week-one relief. Pain typically softens over six to twelve weeks, sometimes longer. Some patients feel a mild flare in the first fortnight that then settles.

  • Roughly two in three respond

    German cohort data suggest around 60–70 percent of hand-OA patients report meaningful pain reduction at three to six months. A minority get little or no benefit - we tell you that up front.

  • A small long-term cancer risk

    A cumulative low-dose radiation risk exists - theoretically higher in younger patients. Most UK units apply a soft age floor of around 40 for LDRT for OA, and explain the numbers before consent.

  • Not for pregnancy or planned pregnancy

    LDRT is contraindicated in pregnancy, and we defer treatment in women planning pregnancy in the next 12 months. Shielding still applies for hand or wrist fields, but the caution is standard.

  • Interaction with future joint replacement

    LDRT does not stop you having a joint replacement later. It does not affect wound healing or bone quality at these doses. Tell any future surgeon about the treatment for the record.

  • When to repeat, when to stop

    A partial response at three months is usually a reason to repeat. No response at three months is a reason to stop and reconsider - LDRT is not a treatment to layer indefinitely.

  • Red flags after treatment

    A hot, red, rapidly swelling joint, fever, or new severe rest pain is not an LDRT side effect - it is joint sepsis or something else and needs same-day review.

Reading your LDRT summary

Your treatment record in four parts. Read the last one first.

Whichever UK centre delivers the six fractions, the summary letter your consultant sends you keeps to the same shape.

A UK consultant clinical oncologist reviewing an LDRT plan for hand osteoarthritis

A quiet reminder

Radiotherapy paperwork is precise and can read coldly - we translate it for you.

If you would like us to talk you through the plan or the response scores before your 12-week review, just ask.

  1. 01 Plan

    Joint, dose, fractions, volume

    Which joint was treated, the total dose (typically 3 or 6 Gy), the fractionation (0.5 or 1.0 Gy × 6) and the treatment volume - the four numbers your plan hangs on.

  2. 02 Delivery

    Set-up and verification

    The immobilisation used (hand board, knee cradle), the imaging on the couch and any deviations across the six fractions.

  3. 03 Response

    Pain and function at 6 and 12 weeks

    A structured pain score (NRS 0–10), function score (VAS-F or joint-specific) and any change in analgesia use - this is what the follow-up letter tracks.

  4. 04 Impression

    Repeat, hold or reconsider

    Read this first: whether to repeat at three months, hold and reassess at six, or step back to a different treatment.

Recognised by major UK insurers

BupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealix

LDRT for benign disease is rarely covered under standard UK health insurance. Most patients self-pay.

Frequently asked

Everything we get asked about LDRT for OA.

Quick answers on the evidence, the six fractions, side effects, cost and follow-up.

  • What is low-dose radiotherapy for osteoarthritis?

    A short course of very low-dose external beam radiotherapy - usually six sessions of 0.5 or 1.0 Gy each over two weeks - aimed at a painful osteoarthritic joint. The mechanism is anti-inflammatory rather than tumour-killing: at these low doses, radiation modulates cytokine release, immune-cell behaviour and osteoclast activity. It has been used in Germany for decades and is increasingly available privately in the UK.

  • Does it actually work?

    For hand osteoarthritis the evidence is the strongest - German cohort and controlled trials suggest around 60–70 percent of patients report meaningful pain reduction at three to six months. For knee, hip and shoulder OA the data are thinner but supportive. Two sham-controlled RCTs from the Netherlands were negative, which is why an honest consultant will describe LDRT as a reasonable second- or third-line option, not a guaranteed answer.

  • What does a treatment session feel like?

    You feel nothing. Each fraction is five to ten minutes lying on the couch with the joint positioned under the machine. There is no injection, no heat and no immediate sensation. Most patients drive themselves to and from the visit and carry on with the day.

  • When will I know if it has worked?

    Pain relief is gradual. Most responders feel improvement between six and twelve weeks after the last fraction, sometimes still building at three to six months. If there is no change at all by twelve weeks, it usually will not work - that is the point to reassess.

  • How much does it cost privately in the UK?

    A six-fraction course typically £1,500–£4,000 per joint. Bilateral (both hands or both knees) £2,800–£7,000. Consultation £280–£450. A repeat course at three months is priced as a fresh course.

  • Is there a cancer risk?

    A theoretical cumulative low-dose radiation risk exists, higher the younger you are. That is why most UK units apply a soft age floor of about 40 for LDRT for OA, and why the consent conversation covers the numbers explicitly. In older patients with disabling joint pain, most authorities regard the risk as clinically small compared with the benefit.

  • Can I still have a joint replacement later?

    Yes. LDRT at these doses does not affect bone quality, wound healing or the surgical technique for a joint replacement done later. It is often used as a delay-or-avoid strategy in patients who are not yet ready - or fit - for surgery.

  • Why is this not more widely available on the NHS?

    NHS radiotherapy resource is prioritised for cancer, and the UK evidence base for LDRT for OA is still building - although a NICE interventional procedures programme has reviewed it. That combination means most LDRT for OA in the UK is currently delivered in a small number of private centres by a small group of clinical oncologists.

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