Importance

Loading Importance Indicators...

Abstract

A sacral screw assembly may provide a connection to a sacrum for a spinal fixation assembly. The sacral screw assembly may include a fixation component, connector, spinal rod, and a fastener. The connector and fixation component are configured to interconnect so that the connector inhibits translational and rotational motion of a spinal rod that is positioned within an opening of the connector. The connector may include a flared arm tip. The flared arm tip may fit within a groove of the fixation component to help position the connector within a cavity of the fixation component. The flared arm tip may also inhibit passage of the connector through the top of the cavity. The fixation component may have a threaded shank. The threaded shank may have a coarse pitch section located near a head of the fixation component, and a fine pitch section located near an end of the shank. When the fixation component is inserted into a sacrum, the coarse pitch section of threading and the fine pitch section of threading may inhibit backout of the fixation component from the sacrum.

Loading the Abstract Image...

First Claim