A system and method for anterior fixation of the spine utilizes a cylindrical implant engaged in the intradiscal space at the cephalad and caudal ends of the construct. The implants are cylindrical fusion devices (10) filled with bone material to promote bone ingrowth and fusion of the disc space....http://www.google.fr/patents/US5683391?utm_source=gb-gplus-shareBrevet US5683391 - Anterior spinal instrumentation and method for implantation and revision
Anterior spinal instrumentation and method for implantation and revision