my mother-in-law had back surgrey to help her with the footdrop but it hasn't done anything so far. she had it done on march 21 2007 and they told her she could go back to work on may 15 2007. she is in worse shape now than before. her lower leg from the knee down swells to 3x the size it should be. she would like to wwhy it would be swelling like that.she can't sit or stand for long, before it starts to swell. any information would help. thank you, lady reb.