Sorry to hear about your injury.  Here's hoping for successful surgery and easy rehab.  

Hang in there.  My paddling partner had knee replacement surgery this off season.  After hobbling over lots of portages the last couple of seasons, it looks like he is fixed up and ready to go this year!  So, stay with it.  I'm sure you'll be rarin' to go by next season (and it will be all the sweeter after a little layoff).

dd