Transforaminal prosthetic spinal disc apparatus

摘要

An intervertebral prosthetic implant having 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 is provided with 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. The securing element extends along the width and length of the lower endplate and configured with an access hole. An extension portion extends from the first surface of the first endplate through the access hole of the securing element and contacts the second surface of the second endplate.

主权项

1. A method of positioning an implant between adjacent first and second vertebral bodies, the method comprising:
forming a channel or groove in at least one of the first and second vertebral bodies; inserting the implant between the first and second vertebral bodies, the implant comprising:
a first endplate having a first surface configured to substantially engage the first vertebral body; anda second endplate having a second surface configured to substantially engage the second vertebral body,wherein the second endplate includes a first window and an opposing second window,wherein a portion of the first endplate directly contacts a surface of the second endplate and is retained within the first and second windows of the second endplate, andwherein at least one of the first and second endplates includes a keel, and the keel slides in the groove or channel to provide for secure anchoring of the implant.