Abstract: Tracked mobile X-ray imaging equipment is used to produce single or stereo long calibrated views of the anatomy of a patient on the operating table. The system estimates the position and orientation of the anatomical planes, virtually places measurement grids over these reference planes, and transforms any radiographic views taking by the X-ray imaging system onto these calibrated planes. The system may apply information about the depth of the anatomy to remove parallax artifacts. This system enables displaying and evaluation of the entire radiographic length of the anatomical planes using a mobile X-ray equipment. It also provides a platform for overlaying the real time X-ray images taken during operation with radiographic images of the patient or schematic of the surgical plan developed before the surgery for quick evaluation of a surgical plan.

Abstract: In some embodiments, an expandable intervertebral implant may include a superior plate configured to engage a superior vertebra, an inferior plate configured to engage an inferior vertebra, wherein the inferior plate is spaced apart from the superior plate by a gap, one or more first sliders moveable along a first direction to urge linear expansion of the gap, and one or more second sliders moveable along a second direction, nonparallel to the first direction, to urge angular expansion of the gap.

Abstract: A system for restricting flexion of a spinal segment in a patient comprises a constraint device having a tether structure and a compliance member coupled with the tether structure. The tether structure is adapted to be coupled with a superior spinous process and a sacrum. The system also includes an anchor member that is anchored to the sacrum. The anchor member has an attachment feature that is adapted to couple with the constraint device.

Abstract: A system for installing a vertebral stabilization system. The system includes an installation tool including a handle portion and a shaft extending distally from the handle portion. The shaft includes a conduit and a staple mechanism. The system also includes a flexible implant member extending along the conduit configured to be advanced out from a distal end of the shaft, and a staple housed in the staple mechanism. The staple is configured to secure the flexible implant member to a vertebra. The handle portion is configured to selectively advance the flexible implant member from the shaft and to selectively actuate the staple mechanism.

Abstract: Devices, assemblies, kits, systems and methods for shaping of elongated elements containing thermoplastic polymers are disclosed.

Abstract: Devices, assemblies, kits, systems and methods for shaping of elongated elements containing thermoplastic polymers are disclosed.

Abstract: A surgical system may include a conductive stylet with a distal end advanceable into bone material and a proximal end coupled to a stylet hub. A handle is non-removably attached to the stylet hub, and removably attachable to an insulative cannula hub. The cannula hub is non-removably attached to a conductive cannula that surrounds the stylet when the handle is attached to the proximal end of the insulative cannula hub. An outer insulative sheath is slideably engaged to insulative cannula hub, and has a radio-opaque distal tip. An electrical signal source may be applied to the stylet hub to conduct a pedicle integrity assessment. The handle and stylet may be removed from the cannula assembly, leaving the cannula assembly in place at the surgical site.

Abstract: An expandable implant includes an upper portion configured to engage a first portion of bone, a bottom portion configured to engage a second portion of bone, a control assembly coupled to the upper portion and the bottom portion and configured to control relative movement between the upper portion and the bottom portion, wherein the control assembly includes a front portion and a control member, wherein the front portion has an aperture configured to receive the control member, wherein the control member includes a head, and wherein a portion of the head is positioned outside of the aperture as the implant is expanded between a first, collapsed orientation and a second, expanded orientation.

Abstract: Implementations described herein may include a system for manipulating implants coupled by a cord. The system may include a tensioner and a counter tensioner. The tensioner may include a nose assembly and a cord lock assembly for applying tension to the cord. The nose assembly may include a piston having a lumen extending therethrough for receiving the cord and a spring positionable in contact with an indicator region of the piston. The counter may be releasably coupleable to a head of an implant at a proximal end thereof and may guide the cord to a port proximate the distal end thereof, the port for receiving the nose assembly. The counter tensioner may enable translation of the implant relative to another implant implanted in an adjacent or nearby vertebrae. The indicator region of the piston may be visible through a window in a tensioner main body and may indicate cord tension when the nose assembly of the tensioner is coupled to the port of the counter tensioner and engaged with the cord.

Abstract: An interbody implant can comprise a cage and a porous structure. The cage can comprise an anterior segment, a medial segment, a posterior segment and a lateral segment contiguously connected to each other to define an interior space. The porous structure can be located in the interior space and can be bounded by the cage. The porous structure can comprise opposed superior and inferior surfaces exposed through the cage, an internal cavity located in an interior of the porous structure, and a plurality of ports connecting the internal cavity to the superior and inferior surfaces. A superior-inferior stiffness of the interbody implant can be defined by the porous structure. The porous structure can be compressed within a patient by movement of the spine to biologically stimulate bone growth in vertebrae adjacent the interbody implant. The implant can be configured for lateral, anterior and posterior insertion at different spine levels.

Abstract: A bone anchor based retractor/distractor assembly for simultaneous tissue retraction and disc space distraction utilizing an adjustable, flexible wire to secure the bone anchors during the distraction process. The assembly includes first and second modular retractor/distractor blades that can be detached for securing to the bone anchor. Each blade has a pivot pin and blade connector with a rotatable knob for adjusting of a wire releasably securable to a bone anchor. The blade connectors are attached to the first and second arm elements, each having a stabilizing arm that is movable in relation to each other by a threaded draw rod having an adjustment knob for activating movement. A main body is secured to a medial retraction blade by an arm having a gear member operatively associated with a gear knob for incremental movement of the medial retraction blade.

Abstract: An implant includes a body, a cavity extending into the body and defined by a first interior lateral wall, a second interior lateral wall opposite the first interior lateral wall, a first interior end wall, and a second interior end wall, a blade guide positioned in the cavity, a blade configured to translate along the blade guide between a first position and a second position, wherein the blade is positioned between the first interior lateral wall, the second interior lateral wall, the first interior end wall, and the second interior end wall in the first position, and an opening extending into the cavity, the opening configured to receive a portion of a rod such that movement of the rod into the opening causes the blade to translate from the first position to the second position.

Abstract: A system for installing a vertebral stabilization system. The system includes an installation tool including a handle portion and a shaft extending distally from the handle portion. The shaft includes a conduit and a staple mechanism. The system also includes a flexible implant member extending along the conduit configured to be advanced out from a distal end of the shaft, and a staple housed in the staple mechanism. The staple is configured to secure the flexible implant member to a vertebra. The handle portion is configured to selectively advance the flexible implant member from the shaft and to selectively actuate the staple mechanism.

Abstract: Systems and methods of operating a tower extender in conjunction with a bone anchor housing can comprise positioning a plurality of deflectable members of a distal end of the tower extender proximate the bone anchor housing, pushing the distal end of the tower extender into engagement with the bone anchor housing to flex the plurality of deflectable members around the bone anchor housing to attach the tower extender relative to the bone anchor housing, rotating a knob to lock the plurality of deflectable members from deflecting away from the bone anchor housing, performing a portion of a surgical procedure with the tower extender, rotating the knob to deflect the plurality of deflectable members away from the bone anchor housing and puling the tower extender away from the bone anchor housing.

Abstract: A spinal treatment system includes a constraint device having an upper tether portion, a lower tether portion and a compliance member coupled therebetween. The upper tether portion is coupled with a superior spinous process of a spinal segment in a patient and the lower tether portion is coupled with an inferior spinous process or sacrum of the spinal segment. The length or tension in the constraint device is adjustable so that the construct of the tether portions and the compliance member provides a force resistant to flexion of the spinal segment. The system also includes a first prosthesis coupled with the spinal segment, wherein the constraint device modulates loads borne by the prosthesis or by tissue adjacent thereto.

Abstract: A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand the height and to maintain a space therebetween. The insert body may include a leading edge that is tapered to allow ease of insertion. A trailing edge of the insert body includes a pin to allow ease of insertion along a curvature path.

Abstract: Systems and methods for detecting regions of interests (ROIs) in biomedical images are described herein. A computing system may identify a biomedical image having an ROI. The computer system may apply an object detection model to the biomedical image. The object detection model may generate a feature map using the biomedical image. The object detection model may generate an anchor box corresponding to a portion of the pixels in the feature map. The computing system may apply an instance segmentation model to identify a segment of the biomedical image within the anchor box corresponding to the ROI. The computer system may provide an output based on the segment to identify the ROI in the biomedical image.

Abstract: A medical instrument for shaving, collecting, and removing vertebral disc material from a vertebral disc space of a spine, has a shaft defining a proximal shaft end and a distal shaft end, and an auger at the distal shaft end. The auger has a plurality of helical cutting flutes configured to shave and collect vertebral disc material from the vertebral disc through rotation of the auger. Each helical cutting flute has a cutting apex that together define a cutting tip, and a radially inward helical slot that collectively define an internal cavity for collection of cut vertebral disc material. The plurality of cutting apexes converge at the cutting tip, defining a point. The medical instrument includes a connector to allow attachment of a handle. A notch in the proximal shaft end that receives a flange of the handle prevents rotation of the handle relative to the auger.

Abstract: A connector assembly includes a bone screw including a head, a first holder assembly configured to receive the head of the bone screw from a bottom of the first holder assembly, an extension set screw including a head and a threaded portion, the threaded portion configured to be received from a top of the first holder assembly, a second holder assembly configured to receive the head of the extension set screw, and an end fastener configured to be received by the second holder assembly.

Abstract: A bone screw implant comprising a bone screw and a sleeve. The bone screw includes a first end, a second end opposite the first end, a cannula extending from the first end to the second end, an externally treaded portion provided between the first end and the second end, and at least one cutting flute. The at least one cutting flute extending from the first end toward the second end, where the cutting flute comprises at least one window extending through the cutting flute and in communication with the cannula. The sleeve comprising a cylindrical body portion extending about the second end of the bone screw, and a plurality of projections extending from the cylindrical body portion configured to engage bone as the bone screw is threadingly advanced.