An artificial spinal joint for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra is disclosed. The artificial spinal joint comprises a first arthroplasty half comprising a first articulating joint replacement component for placement in an intervertebral disc...http://www.google.com/patents/US20050154465?utm_source=gb-gplus-sharePatent US20050154465 - Split spinal device and method
