^Mom's looking great. She's going to physical therapy four times
  a day - yesterday I visited, she was sorting her clothes on the
  bed, free-standing and walking back and forth like normal and
  suddenly said, "Oh, my walker - I forgot it over there - could
  you get it for me?" - that means she *can* stand and walk and
  just has to strengthen up and regain confidence. Knee surgury,
  with good rehab, really is a miracle.^