Abstract: A registration fixture for registration of a medical image to a three-dimensional tracking space, includes a base frame, an orientation plate, and a registration plate. The base frame is adapted to be mounted to an x-ray medical imaging device. The orientation plate is attached to the base frame and has a first set of radiopaque markers arranged along at least four radial lines which extend from a center location. The radial lines are angularly spaced apart about the center location. At least three of the radiopaque markers are arranged along each of the radial lines. The registration plate is attached to the base frame and spaced apart from the orientation plate. The registration plate includes a second set of radiopaque markers arranged along a circle.

Abstract: Clavicle fixation devices and methods thereof. A clavicle fixation device includes an elongated plate extending between first and second ends, the elongated plate defining a plurality of spaced apart screw holes. At least one pair of relief cuts extends into the elongated plate on opposite sides thereof, the at least one pair of relief cuts axially positioned between a pair of the spaced apart screw holes and at least one pair of suture holes along opposite sides of the elongated plate, the at least one pair of suture holes axially positioned between a pair of the spaced apart screw holes. At least one pair of relief cuts is axially aligned with a pair of suture holes to define combined holes on opposite sides of the elongated plate.

Abstract: Bone grafts and constructs including stem cells are provided. Example bone grafts include osteogenic stem cells seeded on a scaffold of osteoconductive cortico-cancellous chips and/or osteoinductive demineralized bone. Example constructs include extracellular matrix on a synthetic scaffold, in which the ECM is secreted from MSCs seeded onto the synthetic scaffold. Also provided are methods of making the present bone grafts and scaffolds. Further provided are methods of promoting bone healing and treating wound healing, by administering the present bone grafts and constructs to a mammal in need thereof. Also provided are kits that include the present bone grafts and/or constructs, or components thereof.

Abstract: A surgical robot system includes a surgical robot having a robot base and a robot arm connected to the robot base. The surgical robot system further includes a joint manipulation arm configured to be attached to the robot arm and to be connected to an appendage of a patient and moved to apply force and/or torque to a joint connecting the appendage through movement of the robot arm. The surgical robot system further includes force and/or torque sensor apparatus configured to output a feedback signal providing an indication of an amount of force and/or torque that is being applied to the robot arm and/or the joint manipulation arm. At least one controller is configured to determine ligaments balancing at the joint based on a plurality of measurements of the feedback signal, and to output information characterizing the ligaments balancing.

Abstract: The present invention is about an intra-corporal telescopic osteo-distraction device for locking the length of the bone and for providing axial, torsional and bending stability; an extra-corporal force producing device for producing a force for extension causing a lengthening of the intra-corporal device and the bone; a method for bone lengthening and a bone lengthening arrangement utilizing the devices of the invention.

Abstract: A power tool for removing an intervertebral disc and preparing vertebral endplates is described. The power tool may include a cutting element, and the height of the cutting element may be adjustable. The cutting element may be a braided cable and may include one or more beads to enhance the effectiveness of the cable. The cutting element may have a minimum height requirement, which may not be satisfied in patients with a collapsed disc due to degenerative disc disorder. For these patients, also described are bone tamps for increasing the intervertebral distance and providing access to tissues distal to the tamp. One type of bone tamp features an inflatable balloon with an inner lumen. Another type of bone tamp includes an expanding distal end and an inner cannula. Also described is a manual expander scraper tool that is compatible with both types of bone tamp.

Abstract: A surgical retractor assembly is provided that can assume both open and closed positions, and is easily convertible from one position to the other. The retractor assembly involves an arcuate frame member that can be engaged to an arcuate connector, which together form a generally circular or elliptical retractor frame assembly. The frame member has a groove for the insertion of one or more mobile carriages that hold retractor blade posts and allow the posts to move in multiple directions. The carriages may be locked to prevent movement in one or more directions, as well.

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: A method of stabilizing a spine providing a fixation system, the fixation system including, a bone fastener, and a modular assembly attachable to the bone fastener. The modular assembly includes a tulip element and a ring element positioned in the tulip element to restrict motion between the bone fastener and the tulip element to uniplanar motion.

Abstract: A jointed rod assembly for use in a spinal fixation construct involves a caudal rod portion connectable to an adjustment mechanism, and a cranial rod portion connectable to the adjustment mechanism. The adjustment mechanism is configured to rotate the caudal and cranial rod portions relative to one another about a joint axis that is generally perpendicular to the longitudinal axes of the caudal and cranial rod portions. The caudal and cranial rod portions may be dimensioned to be compatible with other pieces of hardware commonly used for spinal fixation, such as bone anchors (e.g., pedicle screws), occipital plates, reducers, and others. The caudal and cranial rod portions are composed of a strong, rigid, non-absorbable, biocompatible material. The jointed rod assembly may be advantageously used in spinal fixation systems and methods of spinal fixation.

Abstract: Stand-alone interbody fusion devices for engagement between adjacent vertebrae. The stand-alone interbody fusion devices may include frames and one or more endplates coupled to the frame. The frame may be configured and designed to provide the apertures which are designed to retain bone fasteners, such as screws or anchors, and secure the implant to the adjacent vertebrae.

Abstract: A packaging insert/cartridge for use with an implant having first and second components is provided. The packaging insert includes a main body, a snap fit latch extending proximally from the main body and a spacer extending distally from the main body and configured to be disposed between the first and second components of the implant. The snap fit latch is adapted to snap fit over a mating part of an implant inserter.

Abstract: A translatable end effector for a surgical robot includes a pair of linkage arms, an anchor adapted to be mounted to an arm of the surgical robot and a tool holder connected to the anchor through the pair of arms. The hinges at the anchor are pivotally and slidably coupled to the pair of arms to allow the arms to pivot and slide relative to the anchor hinges. The tool holder is configured to hold a surgical tool and has a pair of hinges that pivotally couple to the ends of the linkage arms. The hinges and the linkage arms are configured such that a longitudinal trajectory defined by the surgical tool is maintained as the tool holder translates upwardly and downwardly relative to the surgical robot arm.

Abstract: Apparatus and method of removing a liner attached to an implanted acetabular shell. A surgical site is accessed where the acetabular shell has already been implanted into a patient. A rim plate having a through opening is placed over the acetabular shell. A pilot hole is then drilled into the attached liner through the opening in the placed rim plate. After the drilling, the rim plate is removed to expose the drilled hole. A removal tool is inserted into the drilled pilot hole. The attached liner is then disengaged from the implanted acetabular shell with the inserted removal tool.

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: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: An implant including first and second end plates, each of which defines at least one anterior ramped surface and at least one posterior ramped surface. A posterior actuator is positioned between the first and second end plates and has guiding ramp surfaces which correspond with the posterior ramped surfaces. An anterior actuator is positioned between the first and second end plates and guiding ramp surfaces which correspond with the anterior ramped surfaces. An actuator assembly extends between the posterior actuator and the anterior actuator and is configured to selectively move the posterior actuator and the anterior actuator simultaneously, move posterior actuator independently of the anterior actuator, or move the anterior actuator independently of the posterior actuator.

Abstract: A bone, cartilage, and disk removal tool assembly is provided with a motor mounted in a housing. A spindle is mounted for rotation to the housing. A rack-and-pinion mechanism is operably driven by the motor and connected to the spindle to oscillate the spindle for providing a rotary oscillating cutting operation. According to at least another embodiment, a plurality of cams is supported in the housing and driven for rotation by the motor. A plurality of followers is mounted for rotation to the housing, in engagement with the plurality of cams so that one rotation of the plurality of cams oscillates the plurality of followers more than once while preventing over-rotation of the plurality of followers. A peak angular acceleration of the spindle is less than nine million radians per second squared.

Abstract: Devices, systems, and methods for providing a degree of freedom to a guide tube associated with a robotic surgical system. The surgical robot system may be configured to have six degrees of freedom associated with a vertical lift, rotation about a shoulder, rotation about an elbow, roll of a forearm, pitch of the end-effector, and rotation of a guide tube independent from the end-effector. The robotic surgical system allows for the proper orientation of an instrument in the guide tube along a trajectory to the operational site of a patient.

Abstract: A surgical robot positions an end effector that guides movement of a surgical tool during a surgical procedure on a patient anatomical structure. A tracking system determines a pose of the anatomical structure and a pose of the end effector and/or the surgical tool. A navigation controller determines a target pose for the surgical tool based on a surgical plan and based on the pose of the anatomical structure, and generates steering information based on the target pose for the surgical tool, the pose of the anatomical structure, and the pose of the surgical tool and/or the end effector. The steering information indicates where the surgical tool and/or the end effector need to be moved. An AR headset controller receives the steering information from the navigation controller and displays a graphical representation of the steering information and/or the target pose for the surgical tool on a see-through display screen.