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Minimally invasive spinal surgery is the future for this type of conditions - the scar is minimal the recovery time is short. The only issue is HOW MANY LAVELS ARE INVOLVED. if it single or 2 level procedure - great, but if it more diffused and severe - one may need more extensive approach involving laminectomy and full disc replacement rather than partial discectomy.
all of these neurosurgical interventions are on "case by case" basis and are fully customizable to individual differences on the MRI and physical exam. Other than that - the promise sounds good
no contracts means out of network - you meet your out of network deductible and then they take you (may run couple of thousands depending on your coverage)
GO on their website - pick a doc then check with Office of professions for license violations and malpractice (public records) - just need to do some googling. Here in NY we have NYDOCTORPROFILE.com - you should have something like that in your state.