Dad will be home on Friday. He has been up today and walking already, but he has an IV for pain going straight into the site. He gets that removed this afternoon so we'll know after that what kind of pain he's feeling. The surgeon said that he's been walking bone on bone, over the ENTIRE surface of his knee joint, for who knows how long, and it's a wonder that he could even stand without his leg collapsing. So - so far, so good!