Do you need total knee replacement after physiotherapy?

Physiotherapy is often used to build leg strength, improve knee flexibility and practise safer ways to walk, climb stairs or rise from a chair. Improvement may reduce the need for an operation, but it does not reverse every cause of knee damage. Replacement may enter the discussion when pain remains intrusive, sleep or work is affected, and ordinary activities stay difficult despite a well-delivered treatment plan. A clinician also considers examination findings and imaging rather than making the decision from physiotherapy alone.

Arrange a review if progress has stalled or symptoms are limiting your routine. Bring details of which exercises helped, which increased pain, how consistently you could complete them and what activities remain difficult. Ask whether the programme needs adjustment, whether another non-surgical option is suitable, and what imaging shows. If replacement is proposed, discuss expected rehabilitation, home support and other treatment choices before deciding.

Seek prompt medical advice for a suddenly hot, red or markedly swollen knee, fever with knee pain, inability to bear weight after an injury, or a newly locked knee. Urgent assessment is needed for severe pain after a fall, a visibly deformed joint or new calf swelling with breathlessness.

Which finding is driving the discussion of replacement? Could my physiotherapy plan be changed? What would recovery require at home? What symptoms should make me contact the clinic sooner?