I had total knee replacement surgery about 20 months ago, recently I have been experiencing a tightness and burning feeling in my knee, especially going up and down stairs. The knee is warm to the touch. What would cause this? Should I be concerned about the possibility of an infection? I am currently on antibiotics for a sinus infection.
Dear patient there is enough possibility of knee sepsis considering your symptoms. This should be tackled urgently and visit to your operating surgeon would be highly recommended. Ultrasound of the knee joint and knee joint aspiration for fluid will be needed to confirm diagnosis. If diagnosis is confirmed debridement of the joint and intravenous antibiotics will be the preferred treatment.