Recovery has been going well. It’s been 11 months since my TKR and no pain at all. Can bend 130 degrees and straighten fully to zero. BUT I have a lot of stiffness, doesn’t prevent me from any of my daily activities but very bothersome!!!! My doctor says, “ oh don’t worry about it sometimes it can take 18 months to fully recover” Should I be concerned and get a 2nd opinion on this???