Intervertebral cage

A method for implanting an intervertebral prosthesis between first and second adjacent vertebrae to provide a lordotic correction, the method comprising:

• accessing a space between the first and second vertebrae;
• attaching a first endplate to the first vertebra, the first endplate comprising a first vertebra-facing side and an opposite first insert-facing side;
• attaching a second endplate to the second vertebra, the second endplate comprising a second vertebra-facing side and an opposite second insert-facing side, wherein the first endplate is pivotably coupled to the second endplate;
• selecting a non-adjustable insert based on a desired correction angle, wherein the insert comprises a superior surface, and a non-adjustable wedge shape configured to be positioned between the distracted first and second endplates;
• positioning the insert between the first endplate and the second endplate;
• and
• attaching the insert to the first and second endplates to secure the first and second endplates at the desired correction angle, wherein the superior surface is flush with the vertebral-facing side of the first endplate and the entirety of the insert is positioned further from the second vertebra than the entirety of the insert is from the vertebral-facing side of the second endplate when the insert is secured to the first and second endplates.

A method, comprising:

• accessing a space between a first vertebrae and a second vertebrae, the second vertebrae superior to the first vertebrae;
• obtaining an intervertebral support system, including:
• a full plate comprising a first groove,
• a first partial plate comprising a second groove and pivotably coupled to the full plate, and
• a second partial plate, where the second partial plate is joined to a spacer configured to be positioned between the full plate and the first partial plate;
• securing the full plate to the first vertebrae;
• rotating the first partial plate relative to the full plate to create an opening,
• inserting at least the spacer of the second partial plate in the opening to complete the first partial plate, wherein:
• the first grove comprises an undercut feature and the second groove does not comprise an undercut feature;
• and
• inserting the spacer comprises engaging the first groove in the full plate from an anterior face of the full plate and engaging the second groove in the first partial plate from an inferior face of the first partial plate;
• and
• securing the second partial plate to the second vertebrae to fix the full plate and the first partial plate at an angular orientation.

A method for implanting an intervertebral prosthesis between first and second adjacent vertebrae to provide a lordotic correction, the method comprising:

• accessing a space between the first and second vertebrae;
• attaching a first endplate to the first vertebrae, the first endplate comprising a first slot, a first vertebra-facing side, an opposite first insert-facing side, a first anterior side, an opposite first posterior side, a first right side, an opposite first left side, and a hinge knuckle protruding from the first insert-facing side;
• attaching a second endplate to the second vertebrae, the second endplate comprising a second slot, a second vertebra-facing side, an opposite second insert-facing side, a second anterior side, an opposite second posterior side, a second right side, an opposite second left side, and a receiver formed in the second insert-facing side,
• wherein the hinge knuckle protrudes from the first insert-facing side toward the second endplate, wherein the hinge knuckle is received in the receiver to form a hinge between the first and second endplates, wherein the hinge knuckle is configured to pivot within the receiver about a hinge axis that extends along a right-left direction so that the first endplate pivots relative to the second endplate about the hinge axis;
• distracting the first endplate relative to the second endplate to a desired correction angle;
• selecting an insert based on the desired correction angle;
• positioning the insert between the first endplate and the second endplate, wherein the insert is non-adjustable and unitary, wherein the first slot comprises an undercut feature and the second slot does not comprise an undercut feature;
• and
• attaching the insert to the first and second endplates to secure the first and second endplates at the desired correction angle, wherein the insert forms at least a portion of an anterior side of the intervertebral prosthesis and at least a portion of a superior side of the intervertebral prosthesis when the insert is secured to the first and second endplates.

A method for implanting an intervertebral prosthesis between first and second adjacent vertebrae, the method comprising:

• attaching a first endplate, comprising a first groove, to the first vertebrae, wherein the first groove comprises an undercut feature;
• attaching a second endplate, comprising a second groove, to the second vertebrae, wherein the second groove does not comprise an undercut feature, the second endplate pivotably coupled to the first endplate;
• rotating at least one of the first endplate or the second endplate such that the first endplate and second endplate form a distraction angle;
• positioning a non-adjustable insert between the first endplate and the second endplate such that the insert engages the first groove and the second groove.