BONE-DERIVED INTERSPINOUS SPACER

摘要

An allograft interspinous spacer for implantation into an interspinous space located between spinous process of adjacent vertebrae. The spacer preferably includes a body, a core and a plurality of dep lovable retainers. The body may be operatively associated with the plurality of deployable retainers. In use, after the body has been inserted into the interspinous space, the plurality of retainers is deployed so that they prevent migration of the spacer. The core is preferably sized and configured to be inserted and/or moved into operatively engagement with the body to deploy the plurality of retainers.