Hi Gary, God bless you. Hope every thing works out for you, I also had full knee replacement surgery as of July 31st; it's been three years. Now I'm gonna have another knee replacement on my right knee and my doctor told me that when he opened up my left knee that it was just all crumbled up inside, Hopefully my right knee is not that bad. So I know what you are feeling. Good luck and God bless. Hope to see you back in the irons again.