



Furthermore, the Prodisc
translates A/P 1mm for every 3° of rotation. Thus, for a total possible 20°,
we see 6.6mm shear added to the already double arc. A natural disc has 15° AP arc. As well, the Prodisc allows 20° lateral rotation, compared to 10° natural. And, the Prodisc is totally unconstrained in 360° Axial rotation, compared to 6° in natural discs! ALL forces are only restricted by the Facet joints!.
Many reports in the literature specify facet arthrosis as a leading cause of
revision in disc arthroplasty [2,3,4]. There have been reports of 32% increase
in progression of facet arthrosis post-Prodisc [4] ... read more.


| MYTH BUSTER In progress. Coming Soon!
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