The back side of L5S1 is different than the back of the other lumbar joints. The sacrum, S1, doesn't have the same parts to hook the Coflex to so it wasn't originally offered for that level.
Stenosis isn't always a symptom of DDD. It is a common one but it is worthwhile making sure you have it if they are suggesting Coflex to treat stenosis. To me, it also seems like they are treating your stenosis while ignoring the cause of the stenosis. It's like they are suggesting you put wheels on your car jack and drive around on it rather than changing your flat tire.
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Laura - L5S1 Charitee
C5/6 and 6/7 Prodisc C
Facet problems L4-S1
General joint hypermobility
Jim - C4/5, C5/6, L4/5 disk bulges and facet damage, L4/5 disk tears, currently using regenerative medicine to address
"There are many Annapurnas in the lives of men" Maurice Herzog
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