I have had cervical discectomy/fusion in 2007 knowing due to spinal stenosis I was needing another in future. Which has come. I have found a wonderful neurosurgeon who is suggesting a partial disc replacement with some kind of RD cage...I m totally getting it wrong..but nervous. The fusion worked like a charm..and wandering why something different? I also have Ankylosing Spondylitis .

Summarized question: History of cervical dissectomy. Have ankylosing spondylitis. Disc replacement required?