I am in your shoes! Do you know the position you're in when putting clothes in a top-load washing machine? Or standing at the sink washing dishes? I cannot stand like that at all, I have to lean forward on my forearms. If I don't, I have to sit on a stool, and am then also on my forearms. I too had a right hip replacement 2 years ago and it's well, but put an additional "quirk" in my stance. To look at me you would thing I'm about to fall on my face. I have found that it does get me to the front of waiting lines tho! Have had many injections, none worked. As far as standing straight, I don't know of any device that will do that. I'm afraid they'll tell you to strengthen muscles in PT.