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PH/CIB,
No problem.
As to using synbone (or any other analog for bone) in such tests, I see it as a confounding factor. The polyurethane plate is unlike bone in that it doesn't really duplicate the structure and density of actual anatomy none of which exists as a 12"x12" plate. The two main types of bone- cancellous and cortical- possess markedly different mechanical properties and are often both present in a given anatomical structure such as the pelvis and spine.
While I found the article kind of interesting, there were several issues that caught my attention, not the least of which was that block size and other test standards were not mentioned. Hard to say if they were simply omitted for the sake of space or if they were never adhered to in the first place, but I suspect that since AR is not a technical journal there is a different standard being followed.
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