I had a right TKR in November of 2021. Pain started to subside by beginning of March and was able to walk unassisted and up and down stairs. Pain returned end of April...cannot walk more than 200', cannot stand more than 10 mins, cannot do stairs. Went back to surgeon...he did an xray and told me that my interior ligament "is loose". The 3 options he gave me were 1) go back to PT 2) redo surgery or 3) learn to live with it #2 is out...will not go thru that pain again. Went back to PT. Have had 6 visits with no improvement. Has anyone had this problem? Any suggestions?