An expandable intervertebral implant for stabilizing adjacent vertebrae includes first and second opposed and operatively connected shells. Each one of the shells has a plurality of engaging members that are interdigitated with a corresponding plurality of engaging members of another of the shells. The...http://www.google.fr/patents/US6520991?utm_source=gb-gplus-shareBrevet US6520991 - Expandable implant for inter-vertebral stabilization, and a method of stabilizing vertebrae
Expandable implant for inter-vertebral stabilization, and a method of ...
