A flexing link assembly and methods for implanting such an assembly in a patient are disclosed herein. The flexing link assembly includes a pair of links that are movably connected together adjacent to an intermediate portion of each link. The connection between the links allows relative movement between the links. One end of each link includes an attachment portion adapted to facilitate attachment of the links to an inferior vertebra. The other end of each link is adapted to facilitate engagement with a spinous process of an adjacent superior vertebra. This arrangement of the links allows flexing and relative movement of adjacent vertebrae yet limits extension therebetween.
