Bone screw and associated assembly and methods of use thereof

A bone screw assembly comprising a bone screw containing a shaft, a head, a circumferential rim adjacent to and extending outward from the shaft forming a first annular cavity between the rim and the head, and additionally comprising a bone screw cap having a cap interior cavity, the bone screw cap being adapted to engage the head of the bone screw, wherein the bone screw cap comprises one or more slots extending though the sides of the cap into the cap interior cavity, and wherein the bone screw cap additionally comprises a second annular cavity which surrounds the cap interior cavity and is separated from the cap interior cavity by one or more tabs, wherein the one or more tabs are configured to engage the first annular cavity and the rim is adapted to engage the second annular cavity when the bone screw cap is inserted onto the bone screw head, and wherein the head is adapted to receive and secure a bone screw cap comprising a cap interior cavity.

A bone screw assembly comprising a bone screw comprising a shaft and a head permanently attached to the shaft, wherein the shaft is threaded and has a central axis and a circumference formed by a major diameter of the threads of the shaft, wherein the head is located above the shaft and overlaps a projection of a cylinder extending from the circumference of the shaft, and wherein the head is biased to one side of the central axis of the shaft, and additionally comprising a generally cylindrical housing, wherein the housing comprises a single central axis and with a proximal opening and a distal opening accessing an interior cavity, a housing channel generally perpendicular to the central axis adapted to receive a stabilizer and creating two opposed arcuate sections in the housing.