Prosthesis of anterior spinal column, instrument guiding the prosthesis and method for installation thereof

An implantation method of a prosthesis of an anterior spinal column, comprising:

• after surgical preparation of a space between vertebral bodies, measuring a distance between vertebral endplates of adjacent vertebrae (42) to select a prosthesis with a proper height, providing that a height of the prosthesis with anchoring elements is at least equal to the distance between the vertebral endplates of the adjacent vertebrae (42);
• selecting the prosthesis with regard to biomechanical and dimensional aspects;
• installing the prosthesis on the installation instrument;
• filling the prosthesis with a material enabling bone fusion;
• seating the prosthesis in the intervertebral space with the use of an installation instrument and guiding instrument provided with a sliding segment;
• and disconnecting the installation instrument from the prosthesis, wherein the prosthesis is installed on the installation instrument through a hole (12) of a positioner (2) which is situated within an inside diameter of a manipulative hole (6) formed in a body (1) of the installation instrument, wherein seating the prosthesis in the intervertebral space comprises:
• resting a bearing surface (28) of a working element (24) of the guiding instrument against an exterior surface of a first one of the vertebrae (42), placing an anchoring element (29) of the guiding instrument into the first one of the vertebrae (42), inserting the installation instrument with the prosthesis installed on it in the intervertebral space by unilaterally resting anchoring elements (4) situated on an end face (3) of the body (1) against an endplate of a second one of the vertebrae (42) opposite the first one of the vertebrae (42) on which the guiding instrument is placed, actuating a rotational movement of the guiding instrument to place the prosthesis deep inside the intervertebral space along at least one guide (26) of the guiding instrument cooperating with at least one pair of opposite guidelines (14, 20) provided in the prosthesis body (1) while simultaneously actuating distraction of the intervertebral space with the use of the guiding instrument, wherein a support and rotation point is located on the anchoring elements (4) situated on the end face (3) of body (1) embedded in the endplate of the second one of the vertebrae (42), and holding the prosthesis in position via the installation instrument while the guiding instrument is removed from the intervertebral space.