Torn Bicep Tendon

I know a lot of people who have torn their biceps as I used to compete nationally in powerlifting and strongman (AKA world's strongest man)

It's something that you can heal 100% from. Not really a big deal. If you deadlift post recovery switch your grip so your injured arm is palm facing towards you.

Why are they operating if you didn't tear it off? (roll up style) You can tear vertically or horizontally (roll up style). I've never seen anyone get it operated on if they didn't' tear it off.