Surgical device for correcting deformations in the spinal column

A surgical device for correcting deformations in a spinal column comprising an implantable curved rod, pedicle screw heads arranged to be connected by the curved rod, tubular elements configured for being temporarily attached at a level of the pedicle screw heads, each tubular element being configured to be coupled to an outside of a respective pedicle screw head and having diametrically opposite slots, a first alignment and handling rod configured to be movably inserted into the slots of each tubular element to align the tubular elements for correction of said spinal column by translation, tilting, and rotation of vertebrae in three planes of space, displacement means configured for displacing the curved rod, previously inserted into the slots of each tubular element, towards the pedicle screw heads upon displacement of the first alignment and handling rod within the slots, wherein the displacement means comprise, for each respective tubular element, a ring assembled with the ability to slide along said respective tubular element, wherein each ring is height-adjustable along the respective tubular element to compensate for dimensional deviations between the first alignment and handling rod and the curved rod, and wherein the surgical device further comprises a second alignment and handling rod coupled to the outside of the aligned tubular elements and configured to maintain adjustment of the tubular elements after removal of the first alignment and handling rod from the slots, and a plurality of nuts for fastening the curved rod in the pedicle screw heads wherein the tubular elements are configured to receive, each in turn, an actuation member inserted therein for actuating a nut of said plurality for fastening the curved rod in each of the pedicle screw heads.