A spinal repositioning instrument includes a first coupling body for direct or indirect coupling to a pedicle screw, and a second coupling body for direct or indirect coupling to another pedicle screw. The spinal repositioning instrument can perform a first movement and a second movement independent from the first movement Under the first movement, the coupling bodies perform a scissor-like pivoting about a first axis. Under the second movement, the coupling bodies rotate in opposite directions about respective second axes. The second axes are relatively fixed under the second movement. The spinal repositioning instrument can also include a synchronising transmission such that the rotations of the coupling bodies under the second movement are symmetrical to each other.

Described herein are devices and methods for fusion of adjacent vertebral bones using distractor platforms for exposure and resection of at least a portion of a facet joint, such as in performance of a TLiF procedure. In one embodiment, the distractor platform contains at least a first receptacle and/or extension adapted to couple to the implanted screw/bone marker, and the method includes advancing a threaded segment of a bone fastener assembly into the identified first pedicle of the first vertebral bone, the bone fastener assembly further comprises a second segment adapted to couple with a distraction platform, which is adapted to concurrently attach onto at least one tissue retention blade, and retain the tissue retention blade in the displaced position. Stabilization of a spinal segment is also provided by advancing a substantially concave orthopedic implant through an opening made in a posterior aspect of a disc space.

An orthopedic device configured for use as a compressor or a distractor is provided. The device has two arm members and a locking sleeve for securely holding an elongated pin is attached to each of the two arm members. The locking sleeve are hingeably connected to the outer end of each of the two arm members by a biaxial hinge block, wherein the biaxial hinge block is configured to allow the locking sleeve to swivel in two different directions about two orthogonally oriented axes.

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.

A derotation reducer linkage with polyaxial locking connector for use with screw reducers/extenders in spinal fusion surgery.

A transverse coupling for connecting multiple implant extensions includes at least a first sleeve and a second sleeve. The first sleeve defines a first aperture adapted to axially receive a first implant extension through the first aperture. The second sleeve defines a second aperture adapted to axially receive a second implant extension through the second aperture. The transverse coupling also includes a central housing. A first shaft connects the first sleeve to the central housing, and a second shaft connects the second sleeve to the central housing. The central housing includes at least one joint for connecting the central housing to at least one of the first and second shafts in a movable arrangement that allows the shaft(s) to move through one or more degrees of freedom relative to the central housing.

A compressor/distractor system for operating on a spine is disclosed. The system includes two rod reducers which each advance a spinal rod into the shoulder portion of a pedicle screw. Each rod reducer includes an inner member, an outer member, and a pair of gripping members. Each outer member receives and advances the spinal rod into the pedicle screw. The outer member also includes a through slot which receives the proximal end of each of the pair of gripping members which may limit the longitudinal translation of the outer member with respect to the inner member. The compressor/distractor system may include a compressor/distractor device which has a compressing, a distracting, and a neutral configuration. A method for using the minimally invasive rod reducers with the compressor/distractor system to secure at least two pedicle screws in desired positions on a spinal rod is also disclosed.

The disclosure relates to a surgical system and related methods to facilitate reduction and fixation of sacro-iliac luxations/fractures (SIL/F) in small animals, for example dogs and cats. In another aspect, the disclosure relates to an aiming device and related methods providing accurate, reliable, and safe fixation of SIL/F in such small animals. The surgical system includes a work surface, an articulatable and lockable reduction arm mounted to the work surface, a reduction handle mounted to the reduction arm; an articulatable and lockable fixation arm mounted to the work surface, a fixation drill guide mounted to the fixation arm, and an image acquisition unit directed toward the work surface. The surgical system provides enhanced safety to surgical personnel using the system in terms of reduced exposure to harmful radiation form the image acquisition unit.

The disclosure herein relates to systems, methods, and devices for developing patient-specific spinal implants, treatments, operations, and/or procedures. In some embodiments, systems, methods, and devices described herein can comprise using artificial intelligence, machine learning, and/or predictive modeling to predict the outcome of a spinal surgery, one or more parameters of a spine of a patient after spinal surgery, for example after implantation of a spinal rod which can be patient-specific, and/or one or more parameters of one or more recommended patient-specific spinal rods. Furthermore, in some embodiments, systems, methods, and devices described herein can comprise intraoperative tracking for tracking and/or suggesting improvements during spinal surgery based on a pre-operatively determined surgical plan, for example in real-time or substantially real-time. In addition, in some embodiments, systems, methods, and devices described herein can comprise screw planning prior to spinal surgery.

Disclosed is a surgical alignment and distraction frame and associated methods of use that facilitates correction of a sagittal imbalance. The alignment and distraction frame works in conjunction with pedicle screw installation guide assemblies to impart the desired correction. The alignment frame can be utilized to ensure the pedicle screw housings are aligned (to facilitate rod coupling) in concert with the completion of a correction maneuver.