Abstract: A rod bender includes a first handle arm and a second handle arm coupled to a first pivot point. A body portion of the rod bender is coupled to the first handle arm at a second pivot point and the second handle arm is coupled to the body portion at a third pivot point. The body portion also includes first and second distal arms configured with first and second rolling elements and navigation arrays coupled to distal ends of the first and second distal arms. A barrel is provided on the body portion which is positioned on a center area of the body portion. The navigation arrays have optical markers that are tracked by camera. A three-dimensional reconstruction of a rod bent by the rod bender is created using tracked position of the optical markers during bending.

Abstract: Orthopedic fixation devices including a pre-assembled double headed tulip assembly, having two tulip elements to receive rods, wherein the assembly may receive a bone fastener in at least one of the tulip elements. At least one of the tulip elements may include a saddle and a ring to attach the double headed tulip to a bone fastener.

Abstract: Systems, methods, and devices for securing a spinal rod are provided. A clamp assembly may include a tulip comprising a first opening and a second opening, wherein an inner surface of the first opening comprises threads; a saddle movably disposed within the tulip between the first and second openings, the saddle comprising a first end and a second end, the first end comprising a portion configured to receive a spinal rod, the second end comprising a cavity configured to receive a pedicle screw, the saddle comprising slots configured to receive a rotating tool; and a threaded locking cap disposed in the first opening.

Abstract: Modular orthopedic implants, associated instruments, and navigation methods. The modular orthopedic fixation assembly may include a modular bone fastener and a modular tulip head configured to be installed separately. The modular bone fastener may be installed and tracked with a screw extender instrument having an outer sleeve and an inner shaft coupled to the bone fastener. The screw extender instrument may continue to track the location and orientation of the bone throughout the surgical procedure for navigational integrity. The modular tulip head may be assembled to the bone fastener with a head inserter instrument, which ensures the modular head is properly seated on the installed bone fastener.

Abstract: An orthopedic fixation device for affixing the screw head of a polyaxial pedicle screw has a tulip, a saddle, and a ring. The tulip has an interior cavity and two opposed threaded arms and a lower ledge. The saddle is inserted into the tulip body, and has a U shaped groove for receiving a spinal fixation rod. The ring has a diameter that is smaller than the widest diameter of the screw head, and is formable into a diameter larger than the widest diameter of the screw head when the screw head is pushed into the ring. The ring has a connection portion that mates with a connection portion of the saddle. The screw head is clamped within the tulip body between the saddle and the ring when a cap is threaded between the tulip arms.

Abstract: Reducer instruments, systems, and methods thereof for reducing a spinal rod. A series of reducers attachable to respective bone fasteners may be actuated by pneumatic or electronic control. Each reducer may have a reducer body having a pair of arms separated by a longitudinal slot configured to receive the spinal rod. A pusher may be slidably engaged with the arms with a distally extending tip configured to translate the spinal rod along the slot. The reducer may include a housing having a cylindrical body with a moveable component configured to drive the pusher to apply a compressive load to the spinal rod. For example, the moveable component may be piston or threaded rod configured to translate the pusher, and thereby drive the spinal rod into alignment.

Abstract: Rod bending instruments, systems, and methods thereof for robotic and navigated rod bending of a rod for spinal surgeries. A system for bending a spinal rod includes a rod bending assembly and an automatic or navigated feeding system. The rod bending assembly includes a bender box having a fixed coupling member and an actuated coupling member. A rod cutter is attachable to the fixed coupling member and a bending mandrel is attachable to the actuated coupling member, for example, over a sterile drape. The automatic or navigated feeding system is configured to feed a spinal rod into the rod bending assembly to bend and contour the spinal rod into a complex three-dimensional shape.

Abstract: A pedicle screw assembly that includes at least one head fixation assembly having an upper body and a lower body with an opening in a bottom portion of the lower body, at least one bone screw positioned between the upper body and the lower body of the head fixation assembly and extends outward from the opening in the bottom portion of the lower body, at least one lateral interconnecting member to stabilize at least one bone in a patient, wherein the at least one head fixation assembly is transversely attached to the at least one lateral interconnecting member; and a securing mechanism to lock the upper body to the lower body to prevent polyaxial motion and translation along the at least one interconnecting member. The interconnecting member can be at least one plate, a c-shaped member, or a walled member with slots. Navigatable screwdriver instruments can be utilized.

Abstract: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head, a bone fastener, a rotatable saddle, and a threaded locking cap. The saddle may be insertable into the tulip head in an unlocked position with a rod seat offset relative to a rod slot of the tulip head. The saddle may be rotated into a locked position with the rod seat aligned with the rod slot such that a rod is positionable through the rod slot and into the rod seat. The threaded locking cap may secure the rod and bone fastener.

Abstract: An implant assembly including an expandable vertebral body replacement implant. The implant assembly includes a right hand end and a left hand end configured to attach to a threaded actuator. An outer ring is configured to surround each of the right and left hand ends and the threaded actuator. The implant assembly may include removable endplates configured to engage vertebral bodies as interbody spacer or through a corpectomy. The implant assembly includes a locking mechanism to prevent collapse or movement the implant assembly after implantation. The locking mechanism automatically engage after removal of an inserter instrument from the implant assembly.

Abstract: An orthopedic fixation device for affixing the screw head of a polyaxial pedicle screw has a tulip, a saddle, and a ring. The tulip has an interior cavity and two opposed threaded arms and a lower ledge. The saddle is inserted into the tulip body, and has a U shaped groove for receiving a spinal fixation rod. The ring has a diameter that is smaller than the widest diameter of the screw head, and is formable into a diameter larger than the widest diameter of the screw head when the screw head is pushed into the ring. The ring has a connection portion that mates with a connection portion of the saddle. The screw head is clamped within the tulip body between the saddle and the ring when a cap is threaded between the tulip arms.

Abstract: Modular orthopedic implants, associated instruments, and navigation methods. The modular orthopedic fixation assembly may include a modular bone fastener and a modular tulip head configured to be installed separately. The modular bone fastener may be installed and tracked with a screw extender instrument having an outer sleeve and an inner shaft coupled to the bone fastener. The screw extender instrument may continue to track the location and orientation of the bone throughout the surgical procedure for navigational integrity. The modular tulip head may be assembled to the bone fastener with a head inserter instrument, which ensures the modular head is properly seated on the installed bone fastener.

Abstract: Navigated force sensing instrument, systems, and methods. The navigated force sensing instruments may be used for applying forces to correct the spine, for example, in compression, distraction, reduction, and/or derotation. The trackable instrument includes markers viewable and trackable by a navigation system, including rigid and movable markers. The trackable instrument includes a flexible portion located between the rigid and movable markers. When a surgical task is performed, the markers indicate the amount of force applied to the instrument and/or a stiffness of the spine.

Abstract: Navigated force sensing instrument, systems, and methods. The navigated force sensing instruments may be used for applying forces to correct the spine, for example, in compression, distraction, reduction, and/or derotation. The trackable instrument includes markers viewable and trackable by a navigation system, including rigid and movable markers. The trackable instrument includes a flexible portion located between the rigid and movable markers. When a surgical task is performed, the markers indicate the amount of force applied to the instrument and/or a stiffness of the spine.

Abstract: Systems, methods, and devices for securing a spinal rod are provided. A clamp assembly comprises a tulip comprising an opening comprising an inner surface, wherein the inner surface is threaded; and a threaded locking cap disposed in the opening, wherein threads of the locking cap and the inner surface include various geometries.

Abstract: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head, a bone fastener, a rotatable saddle, and a threaded locking cap. The saddle may be insertable into the tulip head in an unlocked position with a rod seat offset relative to a rod slot of the tulip head. The saddle may be rotated into a locked position with the rod seat aligned with the rod slot such that a rod is positionable through the rod slot and into the rod seat. The threaded locking cap may secure the rod and bone fastener.

Abstract: Systems, methods, and devices for securing a spinal rod are provided. A clamp assembly comprises a tulip comprising an opening comprising an inner surface, wherein the inner surface is threaded; and a threaded locking cap disposed in the opening, wherein threads of the locking cap and the inner surface include various geometries.

Abstract: Systems, methods, and devices for securing a spinal rod are provided. A clamp assembly comprises a tulip comprising an opening comprising an inner surface, wherein the inner surface is threaded; and a threaded locking cap disposed in the opening, wherein threads of the locking cap and the inner surface include various geometries.

Abstract: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener. The tulip head may house a breakable shear clip that has an initial solid form. When the bone fastener is loaded into the tulip head, the shear clip breaks forming a split ring that expands radially outward to accept the screw head. Then, the shear clip collapses around the screw head, thereby securing the bone fastener to the tulip head. A spinal rod may be secured in the tulip head, for example, with a locking cap.

Abstract: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener. The tulip head may house a breakable shear clip that has an initial solid form. When the bone fastener is loaded into the tulip head, the shear clip breaks forming a split ring that expands radially outward to accept the screw head. Then, the shear clip collapses around the screw head, thereby securing the bone fastener to the tulip head. A spinal rod may be secured in the tulip head, for example, with a locking cap.