Hey Joe is right …. You have to keep on working at it it regardless how much scar tissue your body builds … I am just like you my body build scar tissue faster …. I have had my ups and downs trust me …. But keep exercising and trying new things …. Right now I am just rebounding from swollen knee had to stop using bike , walking everything I like to do for a bit …. My chiropractor starting from feet up insert in shoes , graston on feet and thigh , cuping on lower back this was all within last week and now tightness just about gone in back of knee , swelling gone also….. she told me tkr throws your whole body off so we can’t just treat the knee … because that is what I was doing for months , it helped the pain in my knee for day or two but no long term relief… now I am seeing longer results…. God willing this continues because it is awesome to not have pain with every step…. Hope you find what helps you