I (75) had lumbar surgery in 2015 for stenosis. My spinal cord was so narrow that the surgery was considered urgent or I would lose the use of my legs. The following few years I was better, but the surgeon warned that I would need more future surgeries, and that has proven to be true as I now have sciatica and weakness in my left leg. Shots and ablations have not helped at all.
Upon moving and visiting a new doctor it was discovered that I needed neck surgery for the same reason. The stenosis was affecting my balance. (The poor balance caused me to fall down some stairs and my quadricep tendon was severed and I spent a year recovering from that surgery). The neck surgery was completed 7 weeks ago and my balance issues are almost gone.
The next surgery will be lumbar to try to fix my very weak left leg.
My point is that depending on your personal diagnosis surgery is necessary and helpful in many cases. Several friends of mine have had several surgeries and they are now able to go hiking without pain. That is my ultimate goal.
It is essential to search for reputable surgeons first!