Systems and devices for dynamically stabilizing the spine are provided. The systems include a superior component for attachment to a superior vertebra of a spinal motion segment and an inferior component for attachment to an inferior vertebral of a spinal motion segment. The interconnection between the...http://www.google.com.hk/patents/US20060084982?utm_source=gb-gplus-share專利 US20060084982 - Systems and methods for posterior dynamic stabilization of the spine