Polyaxial screw and rod assembly floor charge

A bone anchor assembly for stabilizing bones or bone fragments, the bone anchor assembly comprising: a bone anchor comprising, operably associated with the bone anchor is an enlarged, curved head portion, the head portion includes a first tool interface for engaging a first surgical instrument; a body portion having a longitudinal axis, an upper end with an upper opening, a lower end with a lower opening, an integrated longitudinally running elongated member, a substantially between the upper opening and the lower opening along the longitudinal axis extending bore, said bore has a first diameter D