Hi all! I’m scheduled for bi-lateral TKR on 15th July. My knee arthritis seems odd. My knees are not stiff in the morning and I have good flexion and good extension in my right knee but not as good in my left. My problem is that I cannot walk for more than ten minutes before getting stiff and very sore to the point of being disabled. If I sit down for a while, I can go again. I go upstairs no problem but cannot get out of a bath or off the floor. My entire legs ache after a short walk. I’ve tried injections, crutches and a rollator but nothing gives much relief. I’m getting nervous that maybe it’s not really knee arthritis at all or just knee arthritis that’s different. As I say I can go up and down stairs no problem and am not stiff in the morning. But I can’t walk and left knee has given out a few times. X-ray shows moderate arthritis but my mobility is severely limited for standing or walking. Is anyone else the same? Best of luck to all waiting and worrying about this op.