A dynamic stabilization, motion preservation spinal implant system includes an anchor system, a horizontal rod system and a vertical rod system. The systems are modular so that various constructs and configurations can be created and customized to a patient....http://www.google.es/patents/US8080039?utm_source=gb-gplus-sharePatente US8080039 - Anchor system for a spine implantation system that can move about three axes
Anchor system for a spine implantation system that can move about three axes