I had an L3-4 artificial (titanium) disc replacement in 2008 and went home the next day. I did take oral opioids for a short period of time but the pain was not that much worse than the back pain I was experiencing prior to the surgery. That pain was totally relieved by the artificial disc. Everyone’s pain experience is different and there are other modalities to manage it besides opioids. I hope the opioid free types of pain meds in development now may be available to you soon. Best wishes for successful improvement of your situation.