Lumbar artificial disc replacements (ADR) have been approved for the US market and have been implanted in the States for the last 5-6 years. My personal opinion is that the lumbar disc replacement is not currently the best treatment for lumbar degenerative disc disease. You will find surgeons who would disagree with me.
I think that in the appropriate case, the cervical disc replacement is a very good implant and there are good indications for its use. I implant cervical ADRs but I do not implant lumbar ADRs.
Dr. Corenman