Implantable systems, devices and related methods

A method for performing spinal surgery comprising:

• preparing a disc space between a first vertebra and a second vertebra of a patient;
• providing a surgical system to be implanted into the disc space of the patient, the surgical system including:
• a substantially rectangular spacer having an upper surface comprising ridges and a lower surface comprising ridges, the spacer defined by a first side arm, a second side arm, a leading arm, and a trailing arm, the first arm, the second arms, the leading arm and the trailing arm each having an outer surface defining a continuous perimeter of the spacer and an inner surface defining a central opening through the spacer, wherein corners of the spacer are convexly curved and at least a portion of the inner surface is concave;
• and
• a substantially rectangular frame that extends around the outside of the spacer and comprises an upper surface comprising ridges, a lower surface comprising ridges, a leading wall, a trailing wall, a first side wall, a second side wall, an outer surface and an inner surface, wherein the trailing wall of the frame comprises a plurality of fixation member openings, and wherein the inner surface of the frame correspondingly engages with the continuous perimeter of the spacer;
• inserting the spacer into the frame, wherein the frame includes one or more protrusions positioned on the inner surface along the leading wall that are each received by a corresponding notch in the outer surface of the leading arm of the spacer when the spacer is inserted into the frame which secures the frame to the spacer, and wherein the frame has a height which is similar to a height of the spacer;
• implanting the spacer and frame into the disc space;
• and
• inserting a plurality of fixation members through the fixation member openings in the trailing wall of the frame and into the first vertebra and second vertebra to secure the spacer and the frame in the disc space.