Knee osteoarthritis is a degenerative joint condition where the protective cartilage in the knee gradually wears down, causing pain, stiffness and reduced mobility. It is the most common form of arthritis in Australia. Photobiomodulation (cold laser therapy) is a non-invasive approach that research suggests may help reduce knee OA pain and improve daily function.
🔒 ARTG-listed device (370913)
🏥 Est. 1972
💳 All major health funds accepted
📍 528 Marion Road, Plympton Park
Does this sound familiar?
🧓 Retirees & Older Adults
What you might be feeling:
- Knee stiffness first thing in the morning that takes longer to ease
- Pain walking up or down stairs that limits your confidence
- Swelling after a walk that makes you cut outings short
- A grinding or crunching sensation when bending your knee
Knee osteoarthritis affects approximately 1 in 5 Australians over 45, and the incidence increases with age. Years of activity, combined with the natural changes to cartilage over time, can leave the knee joint less able to absorb load. Many people find that activities they once enjoyed — gardening, walking with friends, playing with grandchildren — gradually become more difficult. Research from the Australian Institute of Health and Welfare found that osteoarthritis is the leading cause of disability in older Australians.
The Adelaide Cold Laser connection: We see many people in your situation. Cold laser therapy is gentle, non-invasive and does not require medication. Treatment sessions are brief, comfortable and do not involve any recovery time. We are open Monday to Friday from 7am and Saturday mornings.
A proper assessment: If your knees have been slowing you down, an assessment can help determine whether photobiomodulation may be appropriate for your situation.
Book a Consultation
🏃 Active Adults & Weekend Warriors
What you might be feeling:
- Knee pain during or after running, cycling or sport
- A deep ache in one or both knees after exercise that takes days to settle
- Reduced confidence pushing through physical activity
- Swelling that flares after higher-impact sessions
Osteoarthritis is not only a condition of ageing. Active adults in their 40s and 50s — particularly those with previous knee injuries, meniscus tears or ACL reconstructions — can develop degenerative changes earlier than expected. A history of high-impact sport is a well-documented risk factor. The challenge is maintaining the activity levels that keep you healthy without aggravating the joint.
The Adelaide Cold Laser connection: Photobiomodulation may complement your existing exercise and rehabilitation approach. Research suggests it may help reduce pain without the need for additional medication or time away from activity. Treatment is non-invasive and requires no recovery period.
A proper assessment: If knee pain is changing how you train or move, it is worth understanding what is happening in the joint. An assessment can help clarify what may be contributing and whether cold laser therapy is appropriate.
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💻 Office & Desk Workers
What you might be feeling:
- Knee stiffness after sitting for long periods at your desk
- Pain when standing up from your chair or walking after sitting
- Discomfort on your commute home that worsens through the week
- A feeling that your knees are “older than the rest of you”
Prolonged sitting can stiffen the structures around the knee joint. For people with early or moderate osteoarthritis, the transition from sitting to standing can be one of the most uncomfortable moments in the day. Office workers on the Marion Road corridor often tell us they notice their knees most during the commute home.
The Adelaide Cold Laser connection: Our location at 528 Marion Road means you can fit a treatment session in on your way to or from work. Sessions are brief. No time off work required. We are open from 7am for early appointments.
A proper assessment: If your knees are stiffening up at your desk, an assessment can help determine whether cold laser therapy may be a suitable option for your situation.
Book a Consultation
👷 Tradies & Physical Workers
What you might be feeling:
- Knee pain when kneeling, squatting or climbing ladders
- Aching that builds through the day and peaks by knock-off
- Difficulty getting up from ground level after working on a job
- Swelling that limits your range on-site
Trades work places enormous repetitive load on the knee joints. Kneeling, squatting, carrying heavy materials and working on uneven surfaces all accelerate wear. Many tradies push through knee pain for years because they cannot afford time off work, and the idea of surgery feels too disruptive.
The Adelaide Cold Laser connection: Cold laser therapy is non-invasive. There is no recovery time and no restriction on returning to work immediately after a session. Many of our patients fit sessions around their work schedule. On your way home via Marion Road is a common approach.
A proper assessment: If your knees are limiting what you can do on-site, an assessment can help determine what may be contributing and whether photobiomodulation is appropriate.
Book a Consultation
How photobiomodulation may help knee osteoarthritis
Research suggests that photobiomodulation (cold laser therapy) may help reduce pain and improve function in people with knee osteoarthritis. The strongest evidence comes from a meta-analysis of 22 placebo-controlled trials involving over 1,000 participants.
Photobiomodulation works by delivering specific wavelengths of light energy into the tissues surrounding the knee joint. At the cellular level, this light energy is absorbed by chromophores — primarily cytochrome c oxidase in the mitochondria — which may trigger a cascade of biological responses.
What the research suggests may occur:
- Pain modulation — PBM may influence inflammatory mediators and nerve signalling pathways, potentially reducing the perception of pain at the joint
- Reduced inflammation — Studies suggest PBM may help modulate the inflammatory response in osteoarthritic joints
- Improved cellular metabolism — Enhanced mitochondrial function may support tissue repair processes in the structures surrounding the joint
- Improved function — Multiple trials report improvements in daily function measures alongside pain reduction
Knee osteoarthritis involves a complex interplay of cartilage degradation, inflammation, subchondral bone changes and muscular weakness. Photobiomodulation does not reverse cartilage loss, but research suggests it may help manage the pain and functional limitations that accompany the condition.
Individual responses to photobiomodulation vary. Results depend on factors including the severity of the condition, treatment parameters used, and individual biology. A thorough clinical assessment is recommended before commencing any treatment plan.
The evidence
📊 SYSTEMATIC REVIEW · BMJ Open · 2019
Stausholm MB et al. — 22 placebo-controlled RCTs
The largest placebo-controlled analysis of cold laser therapy for knee osteoarthritis to date. Involving 1,063 participants across 22 randomised controlled trials, this study found that photobiomodulation significantly reduced pain compared to placebo. When recommended treatment parameters were used, pain reduction peaked at 2–4 weeks after completing therapy — a 31.87 mm reduction on the Visual Analogue Scale beyond placebo (95% CI 18.18–45.56). Disability was also significantly reduced. No adverse events were reported in any trial.
The authors identified a clear dose-response relationship: 4–8 J at 785–860 nm wavelength and 1–3 J at 904 nm wavelength per treatment spot produced the strongest results.
PMID: 31662383 | DOI
Published in BMJ Open. Individual responses vary.
📊 SYSTEMATIC REVIEW · Physical Therapy · 2024
Oliveira S et al. — 10 placebo-controlled RCTs
A more recent analysis involving 542 participants found that photobiomodulation significantly reduced pain at rest compared to placebo, with a moderate effect size (SMD -0.7, 95% CI -1.1 to -0.2). The authors concluded that PBM may complement other widely recommended therapies for knee osteoarthritis, including exercise.
PMID: 38775202 | DOI
Published in Physical Therapy. Individual responses vary.
“LLLT reduces pain and disability in KOA at 4–8 J with 785–860 nm wavelength and at 1–3 J with 904 nm wavelength per treatment spot.”
— Stausholm et al., BMJ Open, 2019
What to expect — Treatment walkthrough
Your first visit ($99)
- Assessment — Dr Sam Johnson (Chiropractor) will conduct a thorough assessment of your knee, including range of motion, functional tests and a review of your history. This helps determine whether photobiomodulation is appropriate for your presentation.
- Treatment parameters — If cold laser therapy is indicated, treatment parameters are selected based on the evidence. For knee osteoarthritis, research supports specific wavelengths (785–904 nm) and energy doses (1–8 J per spot) depending on the device and tissue depth.
- The treatment — The Multi-Radiance MR5 ACTIV PRO (ARTG-listed, 370913) is applied to the knee. Treatment is painless. Most people feel a gentle warmth or nothing at all. A typical knee session takes approximately 10–15 minutes.
- Your plan — Based on the assessment findings, Dr Johnson will discuss whether a course of treatment may be appropriate. The evidence suggests that results for knee osteoarthritis are typically observed over a course of sessions rather than a single visit. There are no lock-in plans. The decision is always yours.
Standard visits (from $80)
Follow-up sessions are shorter, focused on treatment delivery. Progress is reviewed regularly.
Red Flags — When to See Your GP Urgently
Seek immediate medical attention if you experience:
- 🔴 Sudden, severe knee swelling with warmth and redness (may indicate infection or gout)
- 🔴 Inability to bear weight on the leg after an injury
- 🔴 Knee locking or giving way repeatedly
- 🔴 Fever alongside knee pain and swelling
- 🔴 Unexplained weight loss combined with persistent joint pain
These symptoms may indicate conditions that require urgent medical investigation. Cold laser therapy is not appropriate for these presentations. If in doubt, see your GP or present to emergency.
Frequently Asked Questions
Will cold laser therapy fix my knee osteoarthritis?
Photobiomodulation does not reverse cartilage loss or cure osteoarthritis. What the research suggests is that it may help reduce pain and improve daily function. A meta-analysis of 22 trials found significant pain reductions, particularly when recommended treatment parameters were used. Think of it as a tool that may help you move more comfortably and do more of the things you enjoy. Individual responses vary.
Does the laser treatment hurt?
No. Most people feel a gentle warmth or nothing at all during treatment. The Multi-Radiance MR5 ACTIV PRO uses super-pulsed technology, which delivers therapeutic energy without heating the skin surface. There is no recovery time and you can return to normal activities immediately.
How many sessions will I need?
The evidence for knee osteoarthritis suggests that results are typically observed over a course of treatment rather than a single session. The largest meta-analysis found that pain reduction peaked 2–4 weeks after completing a treatment course. During your first visit, Dr Sam Johnson (Chiropractor) will assess your situation and discuss what may be appropriate. There are no lock-in plans at Adelaide Cold Laser.
Can I still exercise with knee osteoarthritis?
Exercise is one of the most important things you can do for knee osteoarthritis. Guidelines from the Royal Australian College of General Practitioners recommend exercise as a first-line approach. Photobiomodulation may complement your exercise routine by potentially helping manage pain, which may make movement easier. We can discuss what types of activity may be suitable based on your assessment.
How much does cold laser therapy cost at Adelaide Cold Laser?
Your first visit is $99, which includes a thorough assessment and treatment where clinically appropriate. Standard sessions start from $80. Most private health funds cover part of the cost. No lock-in plans. If you prepay for sessions you do not end up using, we refund them in full.
Is cold laser therapy covered by private health insurance?
Cold laser therapy delivered by a registered chiropractor is typically claimable under chiropractic extras cover with most private health funds. We provide a receipt after each visit for you to claim via your fund’s app. Check with your fund regarding your specific level of cover.
Do I need a referral?
No. Chiropractors are primary contact practitioners in Australia. You can book directly without a referral from your GP. If you have a GP Management Plan (EPC plan), you may be eligible for a partial Medicare rebate.
I have already tried everything for my knee — why would this be different?
Photobiomodulation works through a different mechanism to most other treatments. It delivers specific wavelengths of light to the tissues, which may influence cellular processes at the mitochondrial level. This is different to medication (which targets pain pathways systemically), cortisone injections (which suppress local inflammation), or exercise (which strengthens surrounding structures). Research suggests that cold laser therapy may be most effective when used alongside other approaches as part of a broader management plan. Individual responses vary.
What is the evidence for cold laser therapy for knee osteoarthritis?
The evidence base for knee OA is one of the strongest in the photobiomodulation field. A 2019 meta-analysis published in BMJ Open analysed 22 placebo-controlled randomised trials involving 1,063 participants and found statistically significant pain reductions. A more recent 2024 analysis in Physical Therapy confirmed these findings with a moderate effect size. Both studies reported no adverse events. The World Association for Laser Therapy has published specific treatment parameter recommendations based on this evidence.
Is cold laser therapy safe?
Photobiomodulation has an excellent safety profile. Across the 22 knee OA trials in the largest meta-analysis, no adverse events were reported. The Multi-Radiance MR5 ACTIV PRO is listed on the Australian Register of Therapeutic Goods (ARTG 370913). A 2025 international expert consensus confirmed that red and near-infrared light PBM does not induce DNA damage. Cold laser therapy is not appropriate during pregnancy over the abdomen, directly over active cancers, or over the eyes without appropriate protection.
What device do you use?
We use the Multi-Radiance MR5 ACTIV PRO, a super-pulsed laser listed on the Australian Register of Therapeutic Goods (ARTG 370913). It delivers multiple wavelengths simultaneously — including 905 nm super-pulsed laser, 875 nm infrared, and 640 nm red light — which research suggests may optimise tissue penetration and therapeutic effect. This is the same class of device used in many of the clinical trials referenced on this page.
Is knee osteoarthritis the same as wear and tear?
“Wear and tear” is a common description but does not fully capture what is happening. Osteoarthritis involves an active process including inflammation, changes to the bone beneath the cartilage, and alterations to the joint capsule and surrounding muscles. It is not simply a matter of the joint wearing out. Understanding this is important because it means there are multiple targets for management — not just the cartilage itself.
Can cold laser therapy delay the need for knee replacement surgery?
Research has not specifically addressed whether photobiomodulation delays knee replacement surgery. What the evidence does suggest is that it may help reduce pain and improve function, which may allow some people to manage their symptoms more effectively. Any decisions about surgery should be made in consultation with your orthopaedic surgeon. Photobiomodulation is a complementary approach, not a replacement for surgical assessment when indicated.
Does the severity of my osteoarthritis affect whether cold laser therapy will help?
The clinical trials have included participants with a range of osteoarthritis severity. The largest meta-analysis included participants meeting American College of Rheumatology criteria, which covers mild to severe presentations. However, individual responses vary. During your assessment, Dr Sam Johnson will evaluate your presentation and discuss whether cold laser therapy is likely to be appropriate for your level of severity.
Related conditions
References
- Stausholm MB et al. (2019). Efficacy of low-level laser therapy on pain and disability in knee osteoarthritis: systematic review and meta-analysis of randomised placebo-controlled trials. BMJ Open, 9(10):e031142. PMID: 31662383
- Oliveira S et al. (2024). Effectiveness of Photobiomodulation in Reducing Pain and Disability in Patients With Knee Osteoarthritis: A Systematic Review With Meta-Analysis. Physical Therapy, 104(8). PMID: 38775202
- Maghfour J et al. (2025). Evidence-based consensus on the clinical application of photobiomodulation. Journal of the American Academy of Dermatology, 93(2):429-443. PMID: 40253006
About Adelaide Cold Laser
Practitioner: Dr Sam Johnson (Chiropractor)
Qualifications: BSc(Chiro), MChiro — Macquarie University
Practice: Adelaide Cold Laser, 528 Marion Road, Plympton Park SA 5038
Phone: (08) 8297 5277
Hours: Mon–Fri 7am–7pm, Sat 8am–12pm
Device: Multi-Radiance MR5 ACTIV PRO (ARTG 370913)
Last clinically reviewed: April 2026 by Dr Sam Johnson (Chiropractor)
The information on this page is for general educational purposes and is not a substitute for professional medical advice. Photobiomodulation (cold laser therapy) is a complementary approach. Individual responses vary. All clinical claims on this page are supported by peer-reviewed research cited in the references section. If you are unsure whether cold laser therapy is appropriate for your situation, please discuss with your treating health professional.