Patent ID: 8486118

Claim:
A bone plate system, comprising: a bone plate having a bottom surface for contacting bone, an upper surface and at least one through hole extending from the bottom surface to the upper surface, the through hole having a central axis and a cross section that extends orthogonally to the central axis and is one of at least partially polygonal, at least partially prismatic, and at least partially elliptical; a bushing within the through hole, the bushing including a central bore designed to receive a bone fixation element, wherein a cross section of the bushing orthogonal to the longitudinal axis of the bushing is shaped substantially the same as the cross section of the through hole so that the bushing is secured against rotation about its longitudinal axis; and at least one bone fixation element having a portion for anchoring within the bone, the at least one bone fixation element being configured and dimensioned for insertion into the central bore of the bushing.