A spinal fixation system comprising at least two bone anchors, a rod connecting the bone anchors and a connecting plate extending from a proximal surface of at least one of the bone anchors. A method of fixing vertebrae relative to each other comprising the steps of: implanting bone anchors in two adjacent...http://www.google.se/patents/US7967845?utm_source=gb-gplus-sharePatent US7967845 - Head-to-head connector spinal fixation system