Thank You for responding. I think I just had a bad replacement and it will never go away. I am sorry I had it done. I tell everyone to make sure that you want to get the replacement before they make this decision. Take Care and good luck to your dad.
My father had a total knee replacement in 2012 as well. He can wear socks, but his shin/calf mucles (or maybe tendons?) Are hard as a rock, and cause him more pain than he had before the replacement. He is currently getting an ultrasound to check for a bloodclot to be safe. He says the physical therapist's messaging, after a while, loosens the muscles and eases the pain. I've just posted to sevreal forums looking for a leg messager that's heated. I don't know if this helps you at all. His calf is swollen as well. Maybe check for a clot just to be safe. And try getting a referral to a physical therapy center, even just one visit to see if they can get the muscle un-clenched.. Or if they can rule out that it isn't a muscle. The surgeon told my father it was "acute inflamation" but he was told by other doctors that that is not what it is, not after 2 years of it going on.