I had a TKR the summer of 2018. Also I had a plethora of scar tissue. Just recently I was given a CAT scan and bone scan of my knee and a knee aspiration to be done also. My flexibility is horrible I’m at about 85°. I have trouble with stairs carrying my grandchildren and standing on my feet for any great period Of time. Arthroscopy is planned. But I’m not sure that that will resolve it.