Embodiments of the present disclosure include a method for implanting a corpectomy cage within a patients intervertebral cavity space during a surgical corpectomy procedure. The method may include removing a diseased vertebra of a patient from a target incision site to create an intervertebral cavity space within a vertebral column. The method may also include selecting a central core with a height suited to be securely fitted within the intervertebral cavity space to restore the height of the vertebral column. In some embodiments, the method proceeds to selecting a first endcap that matches the patients existing spinal configuration and anatomy to attach to a first end of the central core. Next, the corpectomy cage may be assembled by attaching a first surface of the first endcap to the first end of the central core. In some embodiments, the method may proceed to packing bone material into a cavity formed within the first endcap, the cavity having a cavity floor to contain the bone material. Next, the corpectomy cage may be implanted within the intervertebral cavity space to promote a fusion between the bone material and a vertebra at one end of the intervertebral cavity space.
