One blessing that accompanies dealing with medical issues is an enhanced sense of how truly magical a day at WDW is. Can't tell you how many times the prospect of eventually getting back to WDW has raised our spirits! I know you understand that, having been in a similar situation. We have been trying for several years to get DH to WDW in December, so maybe this will be our lucky year.
If you see a plump 62 year old lady with a purple leg and huge knee (I fell about 10 days ago and messed up my knee), that will be me (at BWV April 25 - May 1). Say hello!

You will also recognize me by the limp and the HUGE smile on my face.
Hope your trip is filled with pixie dust!