Articular disc prosthesis for anterior-oblique insertion

A prosthetic device, comprising:

• a first plate having a first surface comprising an integral first keel arranged to engage a first vertebra from an anterior-oblique approach, the first keel being angled relative to the longitudinal and transverse axes of the prosthetic device;
• and
• a second plate having a second surface in an opposed relation to the first surface, the second surface comprising an integral second keel arranged to engage a second vertebra from an anterior-oblique approach, the second keel being angled relative to the longitudinal and transverse axes of the prosthetic device,
• wherein the first plate is triangular in shape to define first, second and third side portions, the first keel being generally parallel with one of the first, second and third side portions of the first plate, and
• wherein the second plate is triangular in shape to define first, second and third side portions, the second keel being generally parallel with one of the first, second and third side portions of the second plate.

A prosthetic device for anterior-oblique insertion into an intervertebral space, comprising:

• a first component being triangular in shape to define first, second and third side portions, comprising:
• a first articular surface and an opposed first bearing surface, the first articular surface forming a projection;
• and
• a first flange integral with and extending from the first bearing surface, the first flange being angled relative to the longitudinal and transverse axes of the first component, and the first flange being generally parallel with one of the first, second and third side portions of the first component;
• and
• a second component being triangular in shape to define first, second and third side portions, comprising:
• a second articular surface and an opposed second bearing surface, the second articular surface forming a recess adapted to engage with the projection to provide for articulating motion between the first and second components;
• and
• a second flange integral with and extending from the second bearing surface, the second flange being angled relative to the longitudinal and transverse axes of the second component, and the second flange being generally parallel with one of the first, second and third side portions of the second component, and
• wherein the first and second components each include indentation features shaped to interface with an insertion tool, the indentation features being formed in one of the first, second, and third side portions and being non-perpendicular to said one of the first, second, and third side portions.