I am in need of two new knees, however, I would not even consider having a bilateral. My OS won't perform them anyway. I have bone on bone OA in both knees, with the right knee being the worst of the two. Both knees are in pain 24/7 and both knees require knee support braces for me to do even light household tasks. As a result, I am getting rather concerned that my "less worst knee" will impede the rehab and recovery of my "worst knee" which is being replaced in a few weeks. Being in the US, where physical therapy after TKR seems to be the norm, I am beginning to seriously question if I will be up to the task. I would like to hear from those of you who were in the "same boat" as I now find myself in. I would really like to know if having a second "bum leg" impeded your recovery and rehabilitation of the first leg having a TKR. Thank you for any enlightenment you can provide me.