For goodness sake, TEXRA, please do be careful. They give you those stand up silver, tennis ball footed walkers for a reason. I know, because like you, I have had hip replacement surgery. I am so glad you won't need a second replacement surgery on that knee. I have a friend who fell a week after her knee surgery and had to do it all over again. Hope you are all better soon and I hope you're done with the replacement thingie.