An interbody fusion cage having upper and lower canals for receiving the heads of bone
screws that have been pre installed in opposing vertebral body endplates. The proximal wall …

(56) References Cited(57) ABSTRACT US PATENT DOCUMENTS A polyaxial bone screw
includes a head member and a shank member. The shank has a capture end and an …

Polyaxial bone anchors include a retainer for holding a shank Within a receiver, the retainer
being in at least tWo discrete pieces and cooperating With a variety of inserts, some of …

(57) ABSTRACT A secondary cover plate that contacts a stand-alone fusion cage without
rigidly connecting to the cage, and instead only docks against the cage (or passes through a …

(57) ABSTRACT A polyaxial bone screw assembly includes a threaded shank body having
an integral upper portion receivable in an inte gral receiver, the receiver having an upper …

Methods for securing a intervertebral cage to one or more levels of the spine with fixation.
The fixation, which is typically a staple, is intended to be driven perpendicular to the …

A polyaxial bone screw assembly includes a threaded shank body having an integral upper
portion receivable in a receiver, the receiver having an upper channel for receiving a …

(57) ABSTRACT A polyaxial bone screw assembly includes a threaded shank body having
an integral upper portion receivable in an inte gral receiver, the receiver having an upper …

A polyaxial bone screw assembly includes a threaded shank body having an integral upper
portion receivable in an integral receiver, the receiver having an upper channel for receiving …

A polyaxial bone screw assembly includes, a threaded shank body having an integral upper
portion receivable in a receiver, the receiver having an upper channel for receiving a …