The invention relates to a surgical reduction instrument (10) for lowering and fixing a fixing rod (148) in the tulip head (130) of a bone screw (132). The reduction instrument (10) has a coupling sleeve (14) with at least two distal latching arms (18) which are used for coupling the reduction instrument (10) to the tulip head (130) of the bone screw (132) in a direction perpendicular to the longitudinal axis (12) of the reduction instrument (10 ) Radial direction are elastically deflectable. A locking sleeve (22) is longitudinally displaceable on the coupling sleeve (14) between a release position and a locking position, wherein the deflection of the locking arms (18) by the locking sleeve (22) allows in its release position and inhibited in its locking position. A rod depressor (24) serves to contact and lower the fixing rod (148), which is arranged displaceably within the coupling sleeve (14). A gripping part (26) has a through-passage (32) in which the locking sleeve (22), the coupling sleeve (14) and the rod presser (24) are arranged. On the grip part (26), an actuating lever (40) is pivotally mounted to advance the rod presser (24) relative to the coupling sleeve (14). The actuating lever has a force arm (44) which can be moved manually from its rest position, which is laterally projecting from the handle (26), to the grip part (26) and a load arm (48) which is coupled to the bar trigger. The locking sleeve (22) protrudes in its release position with its proximal end (22b) from the through-hole (32) in the axial direction on the handle portion (26) and is independent of the rod presser (24) by acting on its proximal end (22b) with a axially directed force F slidable in its locking position.
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