I think anyone going into back surgery should know all the risks, and I'll say it again, one should try everything else conservative before proceeding with surgery. So someone mentioned failed back surgery syndrome. I knew about this before my surgery and read up on it and decided my pain was so bad and persistent than any failure wouldn't be worse.
Here's an excellent article about the FBSS problem. I find this site to be very fair and full of all kinds of information about your back issue. What spoke to me before my surgery was the fact my pain was primarily in my leg, not my back. FBSS is rarer with my issue.
https://www.spine-health.com/treatme...-after-surgery