I hear your frustration….after my first tkr went wrong and I was not getting anywhere … I had a lot of pain and was stuck at 65 degree my dr did not want to admit anything was wrong, just said I was not pushing because of the pain….After second opinion dr just looked at X-ray knew it was too big … dr said I would have to get redone but would have to deal with the pain another 6 months had to wait a year…..so in that 6 months i continue to exercise, mentally had to prepare myself to go through all that pain again … the first tkr I woke up from surgery in horrific pain…..long story short had 2 tkr surgery woke up no pain , the recovery the second time around has been amazing, I must say i have more scar tissue because of having 2 surgeries I still do mfr , graston , I go to the gym 5 days a week …trust me been there ….. make decision that you can live with , you may not have the proof but can you live with the pain and limitations …. Good luck in whatever you decide to do ….