Dayum!

Sounds like it's the pedals that really did you in. That's why I'm hesitant to use straps or clipless pedals. It still sounds like you would've taken a bad tumble regardless, but with your feet locked in place, there was nothing stopping your hip and leg from taking the brunt of the fall.

I'm glad you and and your doctor are optimistic about this. If everything goes well you'll be back on the bike just in time for summer.