Intervertebral implant

A method of stabilizing adjacent vertebrae comprising:

• forming an opening in an annulus fibrosus between the adjacent vertebrae;
• providing an anterior interbody spacer including:
• a plate body having a plurality of sockets, each configured for retaining a fastener passable through the socket and into a vertebral body, the anterior plate further having first and second mating panels extending posteriorly from the plate body, a lower surface of the second mating panel extending in an upward slope in a posterior direction, and
• a spacer body having upper and lower surfaces sized and configured to be placed within an intervertebral space, the spacer body having upper and lower body panels defining a recess, an upper surface of the upper body extending in a downward slope in an anterior direction,
• wherein the second mating panel is received in the recess of the spacer body and the first mating panel is disposed on top of the upper body panel such that an upper surface of the first mating panel and an upper surface of the spacer body together form an upper surface of the anterior interbody spacer which contacts an endplate of a vertebral body;
• inserting the anterior interbody spacer into the opening;
• and
• securing the anterior interbody spacer to the adjacent vertebrae.