Prostheses and methods for repair of cervical fact joints. In one aspect, thearticulating surfaces of the natural facets of a facet joint are removed onlya sufficient amount to allow the insertion of flat or slightly curvilinear portionsof protheses therebetween in an overlapping relationship. The portions areso inserted and the prostheses mounted by attachment to adjacent vertebrae.Also, a single natural facet may be similarly repaired with a single prosthesis.In another aspect, the invention provides a single prosthesis that is usefulin repairing articulating surfaces in more than one cervical facet joint.