Securement plate for intervertebral implant

A plate configured to secure to an intervertebral implant that extends in a distal direction from the plate, the plate comprising:

• a plate body having at least one bone fixation hole configured to receive a bone fixation element that is driven into a vertebral body, wherein the plate body defines a seat;
• and
• a securement member is configured to rotate in a first direction of rotation about an axis of rotation from an unlocked configuration to a locked configuration,
• wherein the securement member is configured to be driven to translate in a securement direction along the axis of rotation to a secured position until a retention wall of the intervertebral implant is captured between the seat and the securement member when the securement member is in the locked configuration,
• wherein the securement member comprises a securement shaft and a securement head, wherein the securement head is configured to be inserted into the implant when the securement member is in the unlocked configuration and subsequently iterated to the locked configuration, and
• wherein the securement head is oblong and is in a first orientation in the unlocked configuration, and a second orientation different than the first orientation in the locked configuration.