A pedicle screw assembly (100, 200) and method of assembly (500) are disclosed. The pedicle screw assembly (100, 200) includes a bone fastener (170, 270) having a head (171, 271) at a proximal end (173, 273) and a threaded portion (172, 272) extending between the proximal end (173, 273) and a distal end (174, 274). The assembly (100, 200) also includes a compression member (130, 230) having a conical inner surface (136, 236) and a locking member (140) having an outer surface (142, 242) adapted to mate with the conical inner surface (136, 236) of the compression member (130, 230). The assembly (100, 200) may also have an elongated member (120) and a set screw (110, 210) that has a threaded portion (113, 213). The assembly (100, 200) may also have a receiving housing (150, 250) having a central bore (151, 251) extending from a threaded proximal end (152, 252) to a distal end (153, 252) and a U-shaped cavity (160, 260) positioned perpendicular to the central bore (151, 251) and configured to receive the elongated member (120).
