01What is knee osteoarthritis?+
Knee osteoarthritis is a whole-joint condition involving cartilage and other joint tissues. Symptoms and functional effects vary, so treatment is based on the person rather than an X-ray label alone.
02Do X-rays show how much pain I should have?+
No. X-rays show structural changes, but pain and disability do not always match their appearance. The clinical history, examination and day-to-day function remain essential.
03Do I always need an MRI for knee arthritis?+
No. Typical knee osteoarthritis can often be diagnosed clinically. X-rays are used when imaging is needed to clarify the diagnosis or plan treatment; MRI is generally reserved for selected questions where additional bone, cartilage or soft-tissue detail may change management.
04Can exercise worsen knee osteoarthritis?+
Therapeutic exercise is a core treatment for osteoarthritis and can improve pain and physical function. Some temporary discomfort can occur when activity starts or progresses, so the programme should be tailored and built up according to the individual response.
05Do injections cure knee arthritis?+
No. Injections do not reverse established osteoarthritis. A corticosteroid injection may be considered for short-term symptom relief in selected circumstances, with the expected benefit, limitations and individual suitability discussed beforehand.
06When is knee replacement discussed?+
Replacement may enter the discussion when symptoms and functional limitation remain substantial despite proportionate non-operative care, and the clinical and imaging findings support that route. The procedure options are introduced in the replacement section below.
07Which symptoms need urgent assessment?+
Seek urgent medical care for a hot, markedly swollen knee with fever; severe pain after an injury with an obvious deformity or inability to bear weight; or new calf swelling or pain, chest pain, or sudden breathlessness.