Patent ID: 7811307

Claim:
An intervertebral support for restoring and maintaining an anatomical intervertebral spacing and for restoring three-dimensional mobility where the support is installed, the support comprising: an anterior portion and a posterior portion, wherein the anterior portion has a planar face, and upper and lower faces configured to respectively receive underlying and overlying laminae of two adjacent vertebrae for restoring an anatomical intervertebral spacing, wherein the posterior portion comprising a support surface configured to abut against the laminae, and the support surface having at least a height greater than a height of the planar face so as to form a retaining member for preventing the support from migrating towards the anterior portion of the spine by pressing against the laminae, wherein the anterior portion extends outwardly from the support surface of the posterior portion so that upper and lower ridges are formed between the planar face of the anterior portion and the support surface of the posterior portion, wherein the upper and lower faces are located on the upper and lower ridges, and wherein the posterior portion tapers from the support surface in a direction opposite to the anterior portion and towards a posterior end of the support.