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Is Partial Knee Replacement Better Than Physical Therapy Alone?

Dr CR Oosthuizen 4 min read

Yes — non-surgical treatment is always first. But once arthritis is structural, surgery outperforms therapy.

Physiotherapy, weight loss, anti-inflammatories, injections and activity modification are always tried first. Many patients with early arthritis improve substantially without ever needing surgery, and we will not recommend a UKA if conservative treatment is still working for you.

Where physiotherapy stops being effective is when the cartilage damage is structural — bone-on-bone on X-ray, deformity that cannot be corrected, pain at rest or pain that wakes you at night. At that point, no amount of strengthening will rebuild lost cartilage.

Once arthritis crosses this threshold, partial knee replacement reliably out-performs continued non-surgical care for pain relief, function and quality of life. The decision is about timing rather than choosing between two competing treatments.

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