Decoupled spacer and plate and method of installing the same

A surgical method comprising:

• attaching a plate and a spacer to an insertion tool such that the plate is positioned anteriorly of the spacer, wherein the insertion tool comprises an extension, an outer shaft, and a coupling shaft within the outer shaft, wherein the plate comprises a body having a pair of downwardly angled through-holes and an upwardly angled through-hole, and the spacer comprises lateral sides and a posterior portion interposed between the lateral sides, the posterior portion including a threaded bore for receiving the coupling shaft of the insertion tool to attach the plate to the spacer;
• delivering the plate and the spacer to a surgical site via the insertion tool, wherein the plate and the spacer are positioned within a disc space between a pair of adjacent vertebral bodies, wherein the plate includes a superior surface and an inferior surface and a portion of the superior surface and a portion of the inferior surface are configured to engage the pair of adjacent vertebral bodies from within the disc space;
• attaching the plate to at least one of the pair of vertebral bodies;
• and
• releasing the plate and the spacer from the insertion tool by releasing the coupling shaft of the insertion tool from the threaded bore of the spacer, wherein the plate and the spacer remain at the surgical site and are decoupled from one another, and
• wherein the plate further comprises (a) a first non-threaded bore between one of the pair of downwardly angled through-holes and the upwardly angled through-hole and (b) a second non-threaded bore between the other one of the pair of downwardly angled through-holes and the upwardly angled through-hole, and
• wherein the first non-threaded bore is configured to receive the extension of the insertion tool and wherein the second non-threaded bore is configured to receive the coupling shaft of the insertion tool.