A device, system, and method for an expandable intervertebral prosthesis usable for spinal fixation. The prosthesis device generally includes at least two anchors that are a extendable from the device in opposing directions when a deployment pin is inserted into the device to displace the anchors. Implantation of the device may be facilitated by an implantation guide that is engageable with the device for device placement and accurate insertion of the pin into the device to extend the anchors.
