Visiting family

I need to get going this morning and go visit my brother. He had a knee replacement about three weeks ago. He has been in a physical therapy care center ever since. It has been very slow going as they cut the cartilage in his knee and sewed it back together. I guess this is one of 2 types of surgeries and it doesn't appear to me to be the best one. I have had 3 knee replacements and never had any trouble with any of them. He would love to be walking and get out of there and get home and I don't blame him one bit.