Abstract: A spinal implant assembly includes a set screw having a central opening that extends from a first end of the set screw toward a second end of the set screw. The second end of the set screw includes a bottom bore portion, and the set screw is configured to engage with an anchoring member. The spinal implant assembly includes a capacitive assembly having an integrated circuit located within an internal portion the capacitive assembly, and a plurality of capacitive plates positioned on an outside bottom surface of the capacitive assembly. Each of the capacitive plates is in operable communication with the integrated circuit, and the capacitive assembly is configured to be received within the central opening of the set screw, such that the plurality of capacitive plates are positioned above the bottom bore portion.

Abstract: An expandable implant movable between a contracted position and an expanded position, is disclosed. In various embodiments, the implant may be defined by a superior endplate and an inferior endplate having proximal ramps and distal ramps disposed on an interior surface thereof, respectively. The expandable body may include a beveled hook portion at a distal end thereof. In various embodiments, upon rotation of a proximal set screw, a proximal wedge may act against the proximal ramps of the superior and inferior endplates and cause the implant to expand at the proximal end. Upon rotation of a distal set screw, a distal wedge may act against the distal ramps of the superior and inferior endplates and cause the implant to expand at the distal end. In some embodiments, both the superior and distal set screws may be rotated simultaneously.

Abstract: An anti-splaying system having a base, first and second arms, first and second locking channels. Each of the first and second locking channels is formed in a respective one of the arms, from a proximal opening to a proximal bottom at or adjacent a proximal beginning of an inner thread in the arm. The system can instead or also include a set screw having a driving portion, a body portion, external threads extending from the body portion, and an intermediate locking component connected rotatably to the body portion. The intermediate locking component and the channels are configured such that the locking component can, in operation of the system, be moved into a securing position in the locking channels and, when in the secured position, fixes the two arms from splaying away from each other. The technology also includes methods for making the system or components thereof.

Abstract: Bone anchor assemblies and related methods are disclosed herein that can provide for improved fixation of a primary bone anchor. A bone anchor assembly can include a base rotatably received within a rod-receiving member. The base can have a toroid body with a radially-extending portion including at least one auxiliary bone anchor opening that can receive an auxiliary bone anchor to augment fixation of a primary bone anchor of the bone anchor assembly. The base can be rotated relative to the rod-receiving member and the primary bone anchor such that the at least one auxiliary bone anchor opening can be placed in a desired position for supplemental fixation.

Abstract: Systems, devices, and methods for performing Lapidus bunionectomy procedures are disclosed. An example method includes inserting a plurality of metatarsal pins into the first metatarsal at a first predetermined spacing relative to the first tarsometatarsal (TMT) joint, excising the first TMT joint by cutting the bases of the first metatarsal and the first cuneiform proximate the first TMT joint, inserting a plurality of cuneiform pins into the first cuneiform at a second predetermined spacing relative to the first TMT joint, compressing the first TMT joint using a compressor block such that a cut face of the first metatarsal contacts a cut face of the first cuneiform, and fixing the first TMT joint using a bone plate and a plurality of bone screws.

Abstract: Methods and devices for the tailored restraint of two separate bones, in which the bones are generally permitted to rotate relative to one another, or move toward each other, but are restrained from separating beyond a predetermined, fixed distance. In some embodiments, the restraint is provided by compressing a tether into a notched groove.

Abstract: An intramedullary nail includes a body sized and shaped for insertion into a medullary canal of a bone and extending along a longitudinal axis from a proximal end to a distal end and a channel extending through the body along the longitudinal axis in combination with a locking hole extending laterally through the body along a central axis and in communication with the channel, the locking hole defined by a first opening extending through a first portion of a wall of the nail and a second opening extending through a second portion of the wall substantially opposing the first portion, the first opening being elongated in a lateral direction relative to the longitudinal axis of the nail and the second opening including a coupling element configured to lock a portion of a bone fixation element therein.

Abstract: A surgical fastener for use in posterior surgeries that require fusion between the occiput and pelvis. Among other things, the surgical fastener includes a cutter for cutting bone or other tissue.

Abstract: An implant system is disclosed. The system may include an implant receiver having a base and a first arm and a second arm extending from the base in a longitudinal direction towards an open end. The first arm and second arm may define a receiving cavity therebetween. The first and second arm may each include an outside thread pattern for rotatably supporting a nut movable in the longitudinal direction and an inside thread pattern for rotatably supporting a set screw movable in the longitudinal direction. A rod may be selectively positioned within the receiving cavity at an intermediate elevation between the base and the open end and the rod may be supported by the nut. The set screw may be tightened against the rod thereby locking the rod and nut at the intermediate elevation. In some embodiments, the first and second arms may include a plurality of breakoff locations.

Abstract: Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a proximal end plate, a superior endplate, an inferior endplate, and a moving mechanism that is operably coupled to the superior and inferior endplates. The proximal end plate may include at least one bone screw aperture configured to orient a bone screw across a bone screw relief of the superior endplate and/or inferior endplate. The moving mechanism may include a wedge, a first sliding frame, a second sliding frame, a screw guide housing a rotatable first set screw and a rotatable second set screw. A spacing between the superior and inferior endplates may be adjusted upon simultaneous rotation of the first and second set screws and an angle of inclination between the superior and inferior endplates may be adjusted upon translating either of the first set screw and second set screw.

Abstract: Medical devices and methods of using medical devices are disclosed. An example tissue retraction delivery device includes a positioning assembly, the assembly including: a delivery catheter having a distal end region and a lumen extending therein, wherein the distal end region includes an engagement member orienting tip. The delivery device also includes an actuation catheter extending within at least a portion of the delivery catheter, the actuation catheter including a distal end region and a lumen extending therein. An actuation wire extends within the lumen of the actuation catheter, the actuation wire having a proximal end region and a distal end region. An end effector is coupled to the distal end region of the actuation wire, the end effector configured to capture an engagement member of a tissue retraction device, wherein manipulation of the actuation wire shifts the end effector from a first position to a second closed position.

Abstract: In some embodiments, an intervertebral implant may include a body including a superior and an inferior surface. The implant may include a first channel extending from an anterior end towards the posterior end of the body. The implant may include a first anchor channel. The implant may include a first guide member positionable in the first channel. The implant may include a first anchor. When the first guide member moves from a first position to a second position the first anchor may be conveyed through the first anchor channel and couple the body to an adjacent vertebra. In some embodiments, the implant may include a first locking mechanism which inhibits, during use, the first guide member from moving from the second position to the first position upon activation of the first locking mechanism.

Abstract: A pivotal bone screw assembly includes a shank with a capture portion having a spherical lower surface and a body having an anchor portion for fixation to patient bone, and a head member with a channel at a proximal end for receiving a rod and a central opening extending upwardly from a distal aperture through the channel to a top of the head member. The central opening further includes a proximal portion having partial cylindrical sidewalls with a first diameter and a mating structure formed therein for mating with a closure, a distal portion having a curvate surface having an inner edge defining the distal aperture with a second diameter less than the first diameter and for pivotably engaging the spherical lower surface of the capture portion, and a central portion between the curvate surface and the mating structure with a third diameter greater than the first and second diameters. At least a partial thread is formed into the distal aperture to provide for assembly of the shank into the head member.

Abstract: A coupling device for coupling a rod to a bone anchor includes a receiving part having a central axis, a coaxial passage, and an engagement recess extending laterally into the passage, and a pressure member having an expandable portion to clamp the head, a radially outwardly facing surface, and an engagement surface extending from the radially outwardly facing surface. The engagement surface of the pressure member is recessed from an outer surface of the receiving part. The pressure member is movable axially from a first position towards a second position where the receiving part directly engages the pressure member to increase a compression force on the expandable portion for clamping an inserted head. The engagement surface of the pressure member is engageable through the engagement recess of the receiving part by the instrument to move the pressure member axially from the second position back towards the first position.

Abstract: A surgical access system including a tissue distraction assembly and a tissue retraction assembly, both of which may be equipped with one or more electrodes for use in detecting the existence of (and optionally the distance and/or direction to) neural structures before, during, and after the establishment of an operative corridor to a surgical target site.

Abstract: A surgical access system including a tissue distraction assembly and a tissue retraction assembly, both of which may be equipped with one or more electrodes for use in detecting the existence of (and optionally the distance and/or direction to) neural structures before, during, and after the establishment of an operative corridor to a surgical target site.

Abstract: The present invention is about an intra-corporal telescopic osteodistraction device 1 for locking the length of the bone 3 and for providing axial, torsional and bending stability; an extra-corporal force producing device 4a, 4b for producing a force for extension causing a lengthening of the intra-corporal device 1 and the bone 3; a method for bone lengthening and a bone lengthening arrangement utilizing the devices 1 and 4a, 4b of the invention.

Abstract: In accordance with one aspect, a spinal implant for fusing vertebral bones is provided that includes a monolithic body for being inserted between bones. The body has a through opening of the body for receiving bone growth material and a wall of the body extending about the through opening. The wall includes nubs extending into the through opening that increase the surface area of the wall available for bone on-growth.

Abstract: A pedicle screw assembly including a bone fastener having a lower end for engaging bone and an upper end remote from the lower end; a head having a rod-receiving channel attached to the upper end of said bone fastener; a spinal rod insertable into the rod-receiving channel of said head, said spinal rod having an outer surface extending between first and second ends thereof, wherein at least one of the first and second ends has a reduced diameter section. A spinal rod having an outer surface extending between a first end and a second end thereof; wherein the outer surface of said spinal rod has a reduced diameter section at at least one of the first and second ends.

Abstract: The present invention discloses an interspinous process fusion device, a method of fabricating the interspinous process fusion device, and a surgical method for maintaining a space between two spinous processes in a spine of a patient using the fusion device. The interspinous process fusion device including a distal tip member, a middle plate, a proximal plate, an elongate member, and a plurality of movable wings. The elongate member having a first end, a second end, and a longitudinal axis extending between the first and second end. The distal tip member is connected to the first end of the elongate member, the proximal plate is connected to the second end of the elongate member, and the middle plate and plurality of wings are positioned intermediate the distal tip member and the proximal plate along the longitudinal axis to form the interspinous process fusion device assembly.