The first questions are what were the symptoms prior to you ACDF at C5-6? Did the symptoms improve or change after surgery? Did you develop new symptoms further down the road after your surgery or did they occur immediately after your ACDF surgery?
The work-up you have had after your surgery sounds extensive. Did you keep the results of the muliple injections with a pain diary (see website for description)?
Unfortunately, the artifical disc implant in your lumbar spine did not work effectively. What work-up did you have prior to that surgery? Discograms? Epidurals? Facet blocks? How did you symptoms change after surgery?