Hi Wisdom,
I had a L3/L4 lapendectomy (???) in 1991 to remove bone spurs and take pressure off a bulging disc. Before the op, the surgeon said that the first thing I would notice when I woke up, would be the back and siatic pain would be gone.
He was right - never felt better.
12 years passed without any pain, then I started to wear out in other areas and faced fusion from L1 to L5 and all between.
I refused and finally found a physio that worked out what was really causing the problem. Lost weight and improved my core strength substantially, and no back pain anymore.

Every one, and every injury is different.
My only advice is to use surgery as a last resort, and shop around until you find a surgeon that you can relate to and trust. (If that is possible under your health system.)
Also, the younger, healthier, and fitter, you are before surgery, the quicker and easier the recovery.

Good luck.

PK