Spinal implants and methods for the placement thereof are disclosed herein. In one variation, the implant includes a support member, a proximal retention member, and a distal retention member. The support member is configured to be disposed between adjacent spinous processes. The proximal retention member...http://www.google.fr/patents/US7988709?utm_source=gb-gplus-shareBrevet US7988709 - Percutaneous spinal implants and methods
