Multi-level ADR surgeries were generally either done as part of a trial, overseas where the FDA didn't control what could be done, or sequentially - one ADR followed by a second ADR surgery when a second level went bad some time later.
One suggestion is to make sure your doctor suggested the hybrid fusion/ADR only based on what the FDA is allowing. If he/she also thinks that you might have facet problems or other concerns that drive a need for a fusion at one level, you might truly need the hybrid and arguing for a double ADR would get you in worse trouble.
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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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