Last year my knees got worse . I thought of a cart, my husband & daughters said surgery. I am so thankful I listened to them. Had double knee surgery March 22, had home therapest come 3 times a week for a month. I am able to do everything I did beore and now no pain. I only spent 2 days in the hospital, had therapy classes, up and walking day of surgery. Husband spent both nights in hospital with me. Hope this helps.