The present invention provides spinal implants and systems which may be used for fixing a portion of the spine, such as the cervical spine, to allow correction or healing. One such spinal implant includes a body having at least one cavity therein. A barb is disposed within the cavity, with the barb adapted to rotate about a support member between a retracted position and a deployed position. In this manner, the barb may be selectively moved between desired positions, including the retracted and deployed positions. The retracted position may be used during insertion, removal, or repositioning of the implant between two vertebral bodies. The deployed barb position may be used for encouraging the barbs to engage the vertebral bodies to provide additional stability, promote fusion between the implant and vertebral bodies, hold the implant relative to the vertebral bodies, and the like.