Patent ID: 8163020

Claim:
Assembly comprising: an implant intended to replace all or part of a vertebral body of a damaged vertebra, having a central part comprising a bone graft and/or a tubular cage with a solid or perforated wall; two plates which are arranged at ends of said central part and having flat outer faces intended to come into contact with a vertebral plateaus of a healthy vertebrae enclosing the damaged vertebra and are each provided with a slot, and a spinal distraction device, having: two blades which face each other and each having a flat outer face intended to come into contact with the vertebral plateau of the healthy vertebra, said blades each being connected to a rack via a sinuous portion, said sinuous portion being configured to form an offset between said blades and a central part to permit free access to space posterior to said blades; said central part being traversed by said racks and enclosing a pinion having teeth in contact with said racks in such a way that a rotation of said pinion causes said blades to move toward or away from each other, and means for controlling said pinion in rotation, wherein said slots are each designed to receive said blades, a width of these slots corresponding to widths of these blades, but a depth of these slots being greater than or equal to a thickness of said blades.