Knee osteoarthritis (OA) occurs when cartilage in the knee joint gradually wears down, causing pain, stiffness, and reduced mobility. Treatment aims to slow progression, relieve pain, restore function, and maintain quality of life. Most people combine several approaches tailored to their severity.
First-line management includes weight management and physiotherapy to strengthen supporting muscles and improve biomechanics. Non-steroidal anti-inflammatory drugs (NSAIDs)—ibuprofen, naproxen—reduce pain and inflammation; some individuals use topical creams instead. For moderate OA, intra-articular injections provide targeted relief: corticosteroid injections reduce inflammation for 3–6 weeks, while hyaluronic-acid (viscosupplementation) injections mimic natural joint fluid and may improve symptoms for several months. Walking aids and knee braces reduce load. Advanced cases may require joint replacement (arthroplasty), which is highly effective but invasive. Regular activity, warm water therapy, and weight loss are foundational for all stages.
Acupuncture shows modest evidence for OA pain relief in some trials, though results vary. Herbal supplements like glucosamine and chondroitin remain popular but clinical evidence is mixed; some studies suggest benefit for severe OA. Turmeric (curcumin) has anti-inflammatory properties and limited supporting data. Prolotherapy (PRP injections) is emerging—platelet-rich plasma may stimulate tissue repair, though long-term efficacy is still being studied. Manual therapy, massage, and mindfulness-based approaches help manage pain perception.
Regenerative therapies, particularly stem-cell and cartilage-regeneration approaches, are being investigated for knee OA. Bone-marrow-derived or adipose-derived mesenchymal stem cells may promote cartilage repair and reduce inflammation; several clinical trials are ongoing. These treatments remain largely investigational and are not standard care. Candidates may be those with early-to-moderate OA who have not responded adequately to conventional options. See stem-cell options for knee OA and eligibility criteria.
| Option | Type | Evidence | Indicative cost | Invasiveness | Recovery |
|---|---|---|---|---|---|
| Weight management & physiotherapy | Standard | Strong | €0–500 | Low | Ongoing; 8–12 weeks to benefit |
| NSAIDs (oral) | Standard | Strong | €5–50/month | Low | Immediate; long-term use risks GI issues |
| Corticosteroid injections | Standard | Strong | €200–400 | Medium | Few days; effects 3–6 weeks |
| Hyaluronic-acid injections | Standard | Moderate | €400–800 per course | Medium | Few days; benefits 2–6 months |
| Knee replacement (arthroplasty) | Standard | Strong | €15,000–35,000 | High | 3–6 months; highly effective |
| Acupuncture | Alternative | Moderate | €50–100 per session | Low | None; ongoing sessions |
| PRP injections | Alternative | Limited | €500–1,500 | Medium | Few days; effects variable |
| Stem-cell therapy | Regenerative | Investigational | €4,000–15,000 | Medium | 2–4 weeks; ongoing studies |
Most guidelines recommend trialling conservative approaches (physiotherapy, NSAIDs, weight management) and injections before surgery. Injections can provide relief for months and may delay or prevent the need for joint replacement. Discuss timing with your orthopaedic surgeon based on severity and response.
Corticosteroids work quickly to reduce inflammation and pain but effects fade within weeks. Hyaluronic acid aims to restore joint fluid properties and may provide longer-lasting comfort for some, though neither stops cartilage loss. Some people receive both in a combined protocol.
Stem-cell approaches are investigational; several clinical trials are underway. Early results are promising in some studies, but evidence is not yet conclusive. If interested, consult a specialist to discuss current trial data and whether you meet eligibility criteria.
We link primary regulators, registries and peer-reviewed research so you can verify everything yourself — plus the treating clinic's own materials.
Educational overview of treatment options; not medical advice. Standard treatments reflect mainstream guidance; regenerative/stem-cell uses are largely investigational. Reviewed by the StemCellAtlas editorial team.
StemCellAtlas is your guide to stem-cell therapy: what the evidence shows, which conditions are treated, and the real all-in cost by country — typically €3,000–8,000 with our partner Stem Plus (Sofia), Europe's lowest-cost EU destination, versus $15,000–35,000 in the US.
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