Hello. I had a total left knee replacement May 2018. I had a very profound tight band feeling for a long time which would fluctuate in intensity from day to day and caused difficulty with PT. Big improvement after 4 or 5 months but reoccurred very badly at 8th month while on trip to Europe. Increased mobic dose during the 10 days of trip and pushed through it and the tightness/pain was gone after increasing the anti-inflammatory. By the time I returned from trip the tightness and pain was gone---almost seemed like I had to break the inflammatory cycle and keep MOVING. My surgeon said that complete healing takes 1 full year and 13 months out the knee is perfect and playing golf etc. Keep the faith.