As someone who once broke a kneecap into three bits, I can sympathise (and care). It's a very painful and complex joint to have injured. Keep it moving and in time, the pain does go. The odd 'throb' could be the only reminder that you ever did it.
The trouble is, when wondering if people care, there will always be someone who says something like, "You think that's bad!" ..just like I've more or less done here. :D But still, it does mean I know the pain levels involved in a broken knee and can only wish you well and hope the pain subsides soon.