I would like to hear your thoughts on this:
http://physicaltherapy.rehabedge.com...=1&key=&#51978

namely:
"considering the joints above and below will become pivot points"?

and

"The areas above and below the spinal fusion (over a period of time) tend to become hypermobile in an effort to compensate for lack of mobility at the fused level. " ??

is this backed scientifically?