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This is Dr. David
you can try to have more surgery to remove that piece of disk left in there
it could be the original surgeon or another surgeon
but with any back surgery, it can be successful or it may not help.
and you will have a recovery time needed after the surgery.
back surgery is always risky and you always take a chance with back surgery.
weight loss if you can can help take pressure off of your back.
you can also try an implanted spinal simulator to decease pain in your back.
let me know if you have questions.