Thought I'd copy this over here rather than retype
One of the biggest culprits which requires repeat visits is lead migration.
Myself included, but I confess that it was my doing. I overdid it as I began to feel better and one of my leads came loose from the dura and slid down 6 inches!

I don't know HOW long it had been since it happened but when I finally got a lumbar xray, that's when it was discovered. It took some prodding to get anyone to give me the time of day. Lord. But (get this) >> I was doing just fine with the one good lead so we just decided to have the bad lead taken out rather than go back to the OR to fix it. I'm amazed that one lead is doing so well in covering my bilateral leg neuropathy-type pain.
Other issues can't be helped, such as scar tissue or lead breakage.
It is very disappointing to me that patients don't seem to get very good follow-up care. Some do, but alot of people are left feeling like the lone ranger once the high-dollar procedure has been done.
I would venture to say that communication is key, especially during the initial implant and getting coverage where it needs to be. Precision is paramount for a successful outcome. But it's kinda hard to be precise when you're in the twilight daze undergoing this radical procedure.