Abstract: A pedicle-screw assembly has a screw having a threaded shaft extending along a screw axis and having a ball head. A body extending along a body axis is formed with an axially inwardly open screw-head seat in which the ball head can fit and with an oppositely axially outwardly open rod seat. A retainer fitted in the screw-head seat engages around the ball head and in the screw-head seat, and at least one pin extends radially of the body axis and seated in both the body and the retainer for pivoting of the retainer in the screw-head seat about a retainer axis substantially perpendicular to the body axis between a position with the body axis coaxial with the screw axis and a position with the body axis forming an acute axially outwardly open angle with the screw axis. The ball head is swivelable in the retainer.

Abstract: The invention relates to a device for stabilizing the spine, comprising a bone screw (1) having a screw shaft (2) and having a first threaded portion (5) for insertion into the bone, comprising a rod (3) and a connector (4) that may be fixed to the bone screw (1) for the releasable connection of the rod (3) to the bone screw (1). The connector (3) comprises a connector body (9) having a throughgoing hole (10) and a rod seat (11) that is open on one side, into which the rod (3) may be snap fitted.