How to Treat Knee Osteoarthritis Without Surgery: Your Options and GAE

Can knee osteoarthritis be treated without surgery?

For most patients — especially early-to-moderate osteoarthritis — the answer is yes. International guidelines recommend starting with non-surgical care first and reserving knee replacement for severe cases that do not respond to other treatment. Surgery is not the first choice for most people.

The most strongly evidenced non-surgical care is weight loss and exercise. With every step, the knee bears several times your body weight, so losing even a few kilograms genuinely reduces load and pain. Exercise that strengthens the thigh muscles helps support the joint and slow its deterioration.

• Weight loss: reduces load on the knee and genuinely eases pain
• Strengthening the thigh and hip muscles: supports the joint, slows deterioration
• Physiotherapy and activity modification: use the joint correctly, avoid re-injury

Medications and supplements: what really helps

For pain, guidelines recommend starting with topical NSAIDs applied to the knee, because they work well with fewer systemic side effects than pills. Oral NSAIDs should be used at the lowest dose for the shortest time, especially in people with kidney, stomach, or heart conditions — consult a doctor before ongoing use.

As for popular supplements like glucosamine and chondroitin, the overall evidence is unclear and inconsistent — some people feel better, others no different from placebo. They are generally considered safe to try, but should not be expected to replace weight loss and exercise, which remain the foundation.

• Topical NSAIDs on the knee: a safer first choice than pills
• Oral NSAIDs: lowest dose, shortest time; cautious in kidney/stomach/heart disease
• Glucosamine/chondroitin: unclear evidence — fine to try, not the mainstay

Knee injections: HA, steroids, and the truth about PRP / growth factors

Hyaluronic acid injections may relieve symptoms in some people, but the overall effect is modest and uncertain. Steroid injections can reduce pain quickly in the short term during a flare, but should not be given often, as they may harm cartilage over the long term.

For the increasingly popular PRP (platelet-rich plasma), stem cell, and growth factor injections, the honest truth is that the scientific evidence remains unclear and inconsistent. Studies vary widely in quality and preparation method, making firm conclusions difficult, so many major guidelines do not recommend them as standard care. If you are interested, understand that the results are uncertain and the cost is high.

Meet GAE: genicular artery embolization, a non-surgical option

GAE, or genicular artery embolization, is a treatment performed by an interventional radiologist. Through a tiny catheter inserted via a blood vessel, the abnormal small arteries feeding the inflamed joint lining — a source of chronic pain — are blocked. Reducing blood flow to the inflamed area lowers the pain, without open joint surgery.

The appeal of GAE is that it is a needle-sized procedure with no general anesthesia, often done as a day case or with a short observation, with fast recovery. It suits people with chronic osteoarthritis knee pain that has not improved with foundational care but who are not ready for — or do not yet need — a knee replacement. Suitability is assessed individually from imaging, pain location, and overall health.

• Needle-sized access, no open joint surgery, no general anesthesia
• Reduces blood flow to the inflamed joint lining, easing chronic pain
• For those who have not improved with basics but want to avoid a replacement

So which option, and when should you see a doctor?

Good knee osteoarthritis care is a stepwise ladder: start with the strongly evidenced foundation of weight loss and exercise, add medication when needed, and if chronic pain persists, consider a procedure like GAE before reaching for surgery. The best choice depends on your disease stage, symptom severity, and personal goals.

See a doctor if knee pain persists beyond 1–2 months, if walking or climbing stairs becomes difficult, if the knee is swollen or stiff, or if physiotherapy and medication have not helped. An assessment by a team that can care for you across the full range — from foundational care to specialized procedures like GAE — helps you get the plan that fits you best.