主权项 |
1. A surgical method comprising:
performing a total or partial discectomy to remove disc material from the disc space; and inserting a disc assembly into the disc space via a posterior approach, wherein the disc assembly comprises an upper endplate, with keels, a lower endplate with keels, a flexible core element and a slider plate, wherein an extension portion of the upper endplate is adapted it fit within a first cavity in an upper portion of the flexible core element and an extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the flexible core element, wherein the slider plate is positioned completely within the first cavity in the upper portion of the flexible core element, and wherein the extension portion of the first endplate engages with the slider plate to allow translation and rotation. |