Surgical instruments (10) for implanting a spine stabilization system (12), whose spine stabilization system (12) comprises at least two osteosynthesis screws (18) that can each be anchored in a vertebra (14) of a backbone (16), which in each case has at least one first housing of the connecting element (28) and at least one joining element (86) corresponding to the first housings of the joining element (28), which can be introduced and fixed thereon, the instruments (10) comprising at least one multifunctional sleeve (106) with a proximal end and a distal end, whose multifunctional sleeve (106) defines a longitudinal axis (44) and comprises a coupling device of connecting element (108), a separation device coupling device (110) and a clamping instrument coupling device (112), the multifunctional sleeve (106) having a surface of internal wall (114), which is configured in rotational symmetry with respect to the longitudinal axis (44), and no projection of the wall surface (114) protruding or beyond it in the direction towards the longitudinal axis (44), at least one clamp sleeve (36) being provided for tightening, in particular of a distal end, with a head (22) of one of the osteosynthesis screws (18), characterized in that the clamp sleeve (36) It comprises an outer sleeve (40) and an inner sleeve (38) that can be inserted into the outer sleeve (40) and because the outer sleeve (40) can be introduced into the multifunctional sleeve (106).Instrumental quirúrgico (10) para implantar un sistema de estabilización de columna vertebral (12), cuyo sistema de estabilización de columna vertebral (12) comprende al menos dos tornillos de osteosíntesis (18) que pueden anclarse cada uno en una vértebra (14) de una columna vertebral (16), que presentan en cada caso al menos un primer alojamiento de elemento de unión (28) y al menos un elemento de unión (86) que se corresponde con los primeros alojamientos del elemento de unión (28), que puede introducirse y fijarse en estos, com
