The occipital anchor, a nwe implant in cranio-cervical fixation: biomechanical and clinical aspects.

This article presents a new technical solution for cranio-cervical fixation by means of anchors and compares this technique with the solutions previously in use. The evaluation was done on the basis of biomechanical and clinical tests performed with particular attention to the manner of implant insertion, the stability of mounting in the bone, endurance for a period of time sufficient to guarantee spondylodesis, and spatial volume (outer dimensions) of the proposed solution. Clinical applications are indicated.