A spine implant device for fusion or dynamic stabilization of a spine segment can include a fixation device with a shaft portion for engaging bone and a proximal end for coupling to a rod that allows for limited flexing of the proximal end relative to the shaft portion. A spine implant system and method...http://www.google.ca/patents/US20080021465?utm_source=gb-gplus-sharePatent US20080021465 - SPINE TREATMENT DEVICES AND METHODS
