I had one in Feb and feel much better...the higher on the back the better the success..
you likely don't have a choice..good luck
I don't think it will make your back pain worse,possibly better.
For back patients who undergo surgery, 15 to 20 per cent will fall into the category of 'the failed back' - the official nomenclature for people with chronic, considerable back pain that doctors can't fix.
Good luck! hopefully everything will be fine!