Spinal interbody spacer device and methods of using same

A method for manipulating a spinal body spacer for use in spinal surgery on a patient, the method comprising the steps of:

• attaching a placement tool to the spinal body spacer by screwing a threaded tip of the placement tool into engagement with a threaded receiving aperture of the spinal body spacer, the spinal body spacer having an outer face and an opposed inner face, the threaded receiving aperture of the spinal body spacer extending completely from the outer face to the inner face, the spinal body spacer comprising keyways connected to the threaded receiving aperture and extending completely from the outer face to the inner face, wherein the spinal body spacer further defines an interior space at least partially defined by the inner face;
• manipulating the placement tool so as to locate the spinal body spacer in a desired location;
• removing the placement tool by unscrewing the placement tool from the threaded receiving aperture of the spinal body spacer;
• passing a tip of an extraction tool through the threaded receiving aperture of the spinal body spacer, the tip of the extraction tool having at least one tab;
• and
• rotating the tip of the extraction tool such that the at least one tab of the tip of the extraction tool passes through the keyways of the spacer and extends into the interior space of the spinal body spacer.