POLYAXIAL BONE ANCHOR AND METHOD OF SPINAL FIXATION

摘要

Devices and methods include an anchor assembly (30) engageahSe to a vertebra and a connecting element (100) positionable through a receiver (34) of the anchor assembly (30). The receiver (34) includes a body (35) extending along a longitudinal axis (37) that defines an axial bore (42) extending longitudinally therein and opening at least distally and a trans-axial bore (40) that opens in opposite sides of the receiver (34). The connecting element (100) can be positioned through the trans-axial bore (40) in an endwise manner through the receiver (34). The side openings (41) of the trans-axial bore (40) are encompassed by the body (35) of the receiver (34) on all sides of each opening (41).