Complications depend upon why the device was implanted in the first place. If implantation was due to stenosis without slip, removing the device and then at the same time doing a central decompression will remedy the problem. If there is a slip and the vertebra is unstable, then a fusion might have to be contemplated.
I did indeed have the coflex surgery in the Uk. I had it done privately as we were in lockdown.
I am now back in the NHS and have had scans done and am awaiting my consultation and plan to remove the implant.
I would love to communicate further with you on this matter.
My email is [email protected]