I had double knee replacement March of 2013 then in Sept. of 2013 had to go back fell thought we had to replace the replacement because my doctor thought my muscle was torn, it wasn t had to replace knee cap and spacer between. Both knees were bone on bone that s why I did them at the same time. I don t have that pain anymore but still have pain sometimes when sit to long and get up knees are stiff and if i stand to long my knees hurt. can t walk up the stairs right putting pressure on them they hurt, going down I have no problem. I have been on pain meds and that seems to be the only thing that helps with the pain. My dr. want s me to go to a pain management, what will they do for me