Patent ID: 8764754

Claim:
A spinal rod installation kit comprising: a guide assembly comprising a bone screw assembly and a pair of arcuate flanges extending from the bone screw assembly, the arcuate flanges defining at least one longitudinal slot therebetween extending along a longitudinal axis of the guide assembly; a spinal rod configured to be guided toward a fully seated position by the arcuate flanges; a spacer having a first end and a second end, the second end configured to engage the spinal rod; and a reducer configured to engage the first end of the spacer and having an inner member moveably coupled to an outer member; wherein rotation of the outer member relative to the inner member causes a longitudinal movement of the bone screw assembly relative to the spinal rod; wherein the inner member of the reducer includes at least one elongated extension, the extension configured to be received within the spacer and engage a corresponding recess extending laterally from the at least one longitudinal slot; wherein the at least one extension and the pair of arcuate flanges have generally the same curvature about the longitudinal axis and are received within a common annular space within the spacer.