i had a neck fusion 3 years ago, to C5-6-7, now my neck has collapsed above the fusion.  My neurosurgeon says that he can put an artificial disk in above the fusion. Has anyone ever had this done? He said that "they just started letting them do this" in regards to the disk above the fusion so I am assuming this has just recently been approved and I will have a fight with the insurance company to get it done.  If anyone has had it done what is the recovery time? I was off work for 9 weeks with the fusion.