Patent ID: 8449578

Claim:
A multiplanar bone anchor system for a fixation procedure comprising: a bone fastener including a head and an end adapted to engage an anatomy; a coupling arrangement coupled to the head of the bone fastener so that the bone fastener is rotatable and pivotable relative to the coupling arrangement; and a saddle configured to receive a rod along a rod receiving axis, the saddle coupled to the coupling arrangement, the saddle movable relative to at least one of the bone fastener and the coupling arrangement in a direction perpendicular to the rod receiving axis; and a connecting arm coupled to the saddle that defines a bearing surface, wherein the coupling arrangement further includes a ring coupled about the head of the bone fastener, the ring having at least one wing operable to rotatably couple the ring to the saddle, the at least one wing cooperating with the bearing surface to enable the ring to rotate relative to the saddle.