A system and method for the minimally invasive insertion of an intervertebral rod into the vertebrae of a subject, according to a preoperative surgical plan also defining positions for the insertion of rod clamping screws into the vertebrae. The rod shape for connecting the heads of the screws is calculated, and a path planning algorithm used to determine whether the distal end of the rod can be threaded through the screw heads by longitudinal and rotational manipulation of the proximal end of the rod. If so, instructions are provided for forming that rod shape and for the robotic insertion of the screw holes and the rod. If not, either or both of the screw positions and the rod shape are adjusted, to moderate the bends in the rods, until insertion becomes possible. The insertion can be performed robotically, or, if a navigation tracking system is added, manually.

Problem to be Solved A traverse that is percutaneously provided and a surgical instrument for percutaneously providing the transverse are provided. Solution A rod 10 is placed in each of two rod openings 113, 123 and a transverse bar 130 is inserted in two bar holes 111, 121. Set screws 140, 150 are screwed in screw holes 114, 124. The set screws 140, 150 press the transverse bar 130, thereby restraining the transverse bar 130 in the longitudinal direction. Since portions of the bar holes 111, 121 adjoin the rod openings 113, 123, the pressed transverse bar 130 contacts the rods 10 and pushes the rods 10 against the rod openings 113, 123. A protrusion 127 engages with the rods 10 to restrain hooks 110, 120 in the longitudinal direction and circumferential direction of the rods 10.

Spinal stabilization implant assemblies, as well as systems, instruments and methods are provided for implanting and stabilizing adjacent vertebra in connection with a surgical procedure, particularly a spinal surgery. The implant assemblies and instruments enable controlled spinal rod insertion and reduction, and controlled rotation or de-rotation of adjacent spinal bones for optimized compression to achieve enhanced sagittal balance in a treated spine.

A system and method for the minimally invasive insertion of an intervertebral rod into the vertebrae of a subject, according to a preoperative surgical plan also defining positions for the insertion of rod clamping screws into the vertebrae. The rod shape for connecting the heads of the screws is calculated, and a path planning algorithm used to determine whether the distal end of the rod can be threaded through the screw heads by longitudinal and rotational manipulation of the proximal end of the rod. If so, instructions are provided for forming that rod shape and for the robotic insertion of the screw holes and the rod. If not, either or both of the screw positions and the rod shape are adjusted, to moderate the bends in the rods, until insertion becomes possible. The insertion can be performed robotically, or, if a navigation tracking system is added, manually.

This application describes surgical instruments and implants for building a posterior fixation construct across one or more segments of the spinal column. More specifically, the application describes instruments and methods for building a posterior fixation construct across one or more segments of the spinal column in a minimally invasive fashion.

A tool set for implanting a rod in a human spine in conjunction with bone screws.

This application describes surgical instruments and implants for building a posterior fixation construct across one or more segments of the spinal column. More specifically, the application describes instruments and methods for building a posterior fixation construct across one or more segments of the spinal column in a minimally invasive fashion.

The invention relates to a rod insertion device (10) for the insertion of a fixation rod (1) into a pedicle screw, comprising a receiving body (20), which has, at its distal end, a receiving recess (22) with opposite guide grooves (24), a clamping body arranged displaceably in the receiving body (20) for clamping the transverse rod in the receiving groove of the rod insertion device, wherein, in an entry area, the guide grooves of the receiving recess (22) are formed in a first direction in the receiving body (20) and, in a force-fitting area behind the entry area, are formed in a second direction different from the first direction, with the result that an inserted fixation rod is blocked in the first direction and/or in that a blocking element (30) is further provided with a detent (32), which is mounted movable between a release position and a blocking position.

A tool set for implanting a rod in a human spine in conjunction with bone screws. The tool set includes a pair of end guide tools that receive opposite ends of the rod in channels and under manipulation by a surgeon facilitate transport of the rod toward the bone screws attached to the guide tools. Intermediate guide tools having guiding pass through slots are utilized to guide intermediate locations along the rod toward associated bone screws. An attachment structure operably connects the guide tools to the bone screws. The guide tools each include a lower guide and advancement structure to allow a closure top with mating structure to be rotated and driven downward against the rod and to cooperate with similar structure in the bone screw to seat and lock the rod therein. A method utilizing the tool set allows a surgeon to percutaneously implant the rod in the patient.

A tool set for implanting bone screws in a human spine, followed by the implantation of a rod into the bone screws includes end guide tools having flexible back wall flaps that receive opposite ends of the rod and intermediate guide tools that hold the rod in intermediate locations between the end guide tools. Both the end and intermediate guide tools include an attachment structure for operably connecting the guide tool to a bone screw. The attachment structure includes an undercut and/or recess so as to resist splaying and separation of the guide tool from an attached bone screw.