I had my L5/S1 disc partially removed 3 or 4 years ago now. They also removed a chunk of my spine in that area as well at the same time.
One thing I can tell you that you want your doctor to do is, get them to give you something called a Polar Ice Machine with lower back attachment. Basically you fill it up with ice and cold water. That lower back attachment wraps around your lower back and it moves ice cold water through that attachment via a pump inside the polar ice machine. I have used those for 25 years now whenever I have surgery on my knees, shoulder, ankles, back or arms.
It helps SO MUCH with the pain and swelling. One of the best things you could get the doctor to sign off on as the insurance pays for it.
I have double left arm surgery April 11th as they are doing carpal tunnel and a major UCL repair. I had the right arm done in november for the same things. Basically my arms are going numb from the shoulders down. Right arm for the first time in 12++ years almost feels normal again. Then May 12th is right knee surgery then June 11th is left knee surgery.
After those I will be at 121 surgeries since I turned 16. Plus I have double genicular nerve block surgeries on both knees at the end of October. They use 4-5 needles in my knee to chemically burn the nerves to cut down the pain by 50% because without it I can't handle the pain.
Back surgery is NOT easy or fun as the recovery is going to take you a few months most likely. I did mine without a spinal tap as I despise those. Most people use them but I don't like the idea of waking up temp paralyzed.
GL!