With a general understanding of spinal stenosis is corrected by straightening the spine using the "Harrington Procedure" where brackets, bars and screws are used. But spinal cord stimulation is not the fix all procedure. It depends on electrode placement, the Doctor and the device manufacturers rep.
In order to understand "Best Practices", the Dr, has them wake you during electrode placement as the use an anatomy chart to start. But with using Medtronics SCS search on YouTube, most talk to the patient briefly while placement of electrodes are still available. They generate a generic signal and ask the patient where they feel it. If not correct, the surgeon has the opportunity to re-locate it! Otherwise they are guessing. My first implant went down my legs, but my pain was carefully explained as lumbar. They had no clue. Like finger prints, no two are alike and it makes total sense. My doctor didn't understand what I was asking for! Why would you want to talk during surgery, he asked! Because you don't know if your placement of the electrode is correct!!! The Medtronics rep was in scrubs, gloved up and holding a controller Bluetooth and laptop. He did nothing except collect a pay check w/commission for his sale. The big problem is communication as neither knew what I was asking for. Then I got an email telling me that Medtronics could no longer be of help. Have a good life! What the H*}\L?
Best of luck. I hope I give you info to use. Dr's don't communicate well.