Interbody spinal fusion implants being at least in part radially expandable at one of the leading or trailing ends to expand both the height and at least a portion of the width of the implant, and instruments and methods for inserting the implants into an implantation space in the spine are disclose...http://www.google.fr/patents/US7128760?utm_source=gb-gplus-shareBrevet US7128760 - Radially expanding interbody spinal fusion implants, instrumentation, and methods of insertion
Radially expanding interbody spinal fusion implants, instrumentation, and ...