Squatter, there are many incidents I have read on internet when doctors had advised their patients not to lift weights, but form work , rehab, patience,and constant monitoring have helped patients to recover and do what they love.
I am sure you would deadlift again that too more than 500 lbs. Just be positive and there are experts on MAB who are already helping you. Keep up the fight bro. All the best.
Johnnie Walker - Keep Walking