Patent ID: 8277509

Claim:
An intervertebral prosthetic implant comprising: a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface; a second endplate having a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having a securing element positioned along and above the second surface defining a first and second window on opposing sides of the second surface; and wherein the securing element extends along the width and length of the lower endplate and configured with an access hole, wherein said concave contact surface of the extension substantially contacts the convex contact surface of the second endplate, and wherein the concave contact surface of the extension directly engages the first and second windows of the second endplate, wherein said prosthetic disc is configured for implantation into the intervertebral space by a transforaminal approach, wherein the extension extends through the access hole of the securing element.