Abstract: A spinal implant device is provided comprising a body structure with a central cavity and a movable lid configured to cover the central cavity. The movable lid is configured to be opened to pack a material in the central cavity. The movable lid can be connected to the body structure with a moveable joint. The spinal implant device can include a compressible feature. A method for treating the spine is provided comprising opening a movable lid of a spinal implant device, packing a material in a central cavity of a spinal implant device, closing the movable lid, and inserting the spinal implant device between vertebrae.

Abstract: An expandable spinal implant having a first portion and a second portion is provided. The expandable implant includes a first moveable portion and a second moveable portion attached to the first portion. The first moveable portion and the second moveable portion are moveable independently of one another. The movement of the first moveable portion and the second moveable portion facilitate independent expansion of a trailing end portion and a leading end portion of the expandable implant.

Abstract: A bone anchor assembly includes a shank having a head and an anchor portion, and a receiver having a first channel to receive a rod and an axial bore with an upper internal thread, interference abutment surfaces below the upper internal thread, and a bottom opening. The assembly also includes an insert having a second channel to receive the rod and opposite lateral protrusions positioned above the interference abutment surfaces upon loading into a first position within the axial bore. The assembly further includes a resiliently expandable retainer positionable within the axial bore adjacent the bottom opening to capture and hold the head in the receiver.

Abstract: Devices, systems and methods for use in spinal surgeries. The system may include a fastener system comprising a fastener, a staple, and a locking cap. A cord may extend along the spine and through at least one fastener system. An instrument may be provided for tensioning the cord. The system may, for example, apply fixation on the convexity of the scoliotic vertebrae to limit growth on the convex side and allow unilateral growth on the concave side.

Abstract: A modular pedicle screw for spinal fixation. The pedicle screw includes a bone screw and a modular head assembly. The bone screw having a head and a shank, the head defining at least one groove. The modular head assembly includes a housing having a proximal end, a distal end and a throughbore extending along a longitudinal axis of the housing between the proximal and distal ends of the housing, and an anvil disposed within the throughbore. The modular head assembly includes at least one protrusion sized and shaped to be received by the at least one groove for restricting relative movement between the housing and the bone screw to a single plane.

Abstract: A method and a device for bone adjustment in a mammal is presented, wherein a device is implanted in the medullar cavity of a bone in the body of said mammal, said device being a device exerting a force to anchoring devices anchored in said bone. The method and device has utility in therapeutic and cosmetic bone adjustments, including the lengthening, reshaping and realigning of bones, for example in the correction of congenital deformations, restorative orthopaedic surgery and the like.

Abstract: A tissue guard for use with a surgical access device includes a proximal ring having proximal and distal ends, the distal end configured to operably couple to a ground ring that ultimately electrically connects to an electrical ground. One or more mechanical interfaces extend about the proximal ring and are configured to mechanically engage a rim of an access device to secure the tissue guard thereon. A retention body is configured to operably couple to a distal end of the ground ring, the retention body including a distal end configured to operably engage the access device to secure the tissue guard therein.

Abstract: Disclosed are embodiments of a laryngoscope that facilitates targeted recording (video, or audio, or both video and audio) of time intervals associated with active laryngoscopy. In accordance with the teachings of the disclosure, a characteristic that reliably defines the interval of active laryngoscopy is used to trigger recording. One such characteristic is that the operator's hand is gripping the handle of the laryngoscope. Accordingly, preferred embodiments implement a laryngoscope having a handle so designed that when the handle is gripped by the operator's hand, recording is initiated and continued for as long as the operator's hand maintains a grip on the laryngoscope handle.

Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part with an accommodation space defining an opening for inserting and accommodating a head of the bone anchoring element, and a pressure element having a cap portion configured to hold the head. In an inserting position, the cap portion of the pressure element is expandable in the accommodation space of the receiving part, and a first retaining element is configured to prevent the pressure element from moving towards a first end of the receiving part. In a pre-locking position, the head is held in the cap portion of the pressure element and is pivotable in the receiving part, while the cap portion is restricted from expanding to prevent removal of the head, and where a second retaining element is configured to prevent the pressure element from moving from the pre-locking position towards the inserting position.

Abstract: A modular bone anchor system includes a plurality of bone anchors, with each bone anchor comprising a capture portion at a proximal end, an anchor portion at a distal end, and a neck portion integral with the capture portion and the anchor portion. The system also includes a plurality of pivoting and non-pivoting receiver sub-assemblies, with each receiver sub-assembly including a receiver having a channel for receiving a rod and a central bore that extends upwardly from a bottom opening through the channel to a top of the receiver, and either a capture portion-engaging retainer or a rod-engaging insert positioned within the central bore. The capture portion of each bone anchor has a single predetermined size and shape that is common with the other bone anchors and is configured for uploading into either the pivoting or non-pivoting receiver sub-assemblies through the bottom opening of the receiver.

Abstract: An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body, an articulating element, and a blocking member. The articulating element can articulate in-situ, thereby allowing articulation of the spinal implant into a desired position within the disc space.

Abstract: An internal fixation member set includes an internal fixation member, an inner member, and an outer member. The outer member has a first opening and a second opening, and rotatably retains a head of the inner fixation member. The inner member is inside the outer member and movable between a first position farther from the head and a second position nearer the second opening than the first position. The head has a first rotation range with the inner member at the first position and a second rotation range with the inner member at the second position. The second rotation range is smaller than the first rotation range with an interference between interference parts. A reference rotational position at which the head is insertable into or extractable from the outer member is included in the first rotation range and is not included in the second rotation range.

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: A bone nail for stabilizing a fracture. The bone nail having a head portion and a stem portion. The stem portion offset from the longitudinal axis of the head portion. The nail including a continuous passageway extending from a rear edge of the nail to a front edge of the nail. The continuous passageway including a bore extending longitudinally through the head portion and both a groove and a bore in the stem portion.

Abstract: A polyaxial bone anchoring device includes a receiving part with an upper member having a first end, a second end, and a recess at the first end for receiving a rod, and a lower member connectable around the second end of the upper member, and a pressure member positionable in the upper member to exert pressure on a head of a bone anchoring element. The lower member is movable from a first position where the head is pivotable, to a second position closer to the first end of the upper member where an angular position of the head is locked while the recess remains vacant or unobstructed. When the lower member is at the second position, at least part of the lower member is aligned axially with at least part of an end face at the second end of the upper member.

Abstract: A method comprises the steps of: imaging a patient anatomy; selecting an implant strategy for at least one bone fastener having a first member; registering the imaging of the patient anatomy with imaging of a surgical driver; engaging the first member with tissue of the patient anatomy via the surgical driver according to the implant strategy; manipulating the patient anatomy; acquiring data points representative of a position of the first member relative to tissue; and retrieving the data points from a computer database for attaching a second member with the first member. Systems, spinal constructs, implants and surgical instruments are disclosed.

Abstract: A delicate tissue retraction system for use with a navigation probe having a probe shaft and a probe tip at a distal end of the probe shaft. The delicate tissue retraction system includes a retractor and an introducer that is removably installed within the retractor. The introducer has a wall forming a hollow channel extending from a proximal introducer end to a distal introducer end. A mount is integrally formed with the introducer and extends from the distal introducer end into the channel. The mount is positioned to surround the probe tip when the navigation probe is at a fully inserted position within the introducer with the probe tip at the distal introducer end.

Abstract: Expandable spinal fixation assemblies, systems, and methods thereof. An expandable spinal fixation system may include expandable barrel assembly including an upper barrel half and a lower barrel half and a fixed barrel assembly. The fixed barrel assembly is insertable between the upper barrel half and the lower barrel half such that the fixed barrel assembly is clamped between the upper barrel half and the lower barrel half. Each of the expandable barrel assembly and the fixed barrel assembly includes fixation plates adapted to secure spinous processes to the fixation system.

Abstract: An interbody spinal implant for implantation in a disc space between adjacent vertebral bodies, and an insertion instrument facilitating such implantation is provided. The spinal implant includes a body portion and an extended end portion, where at least the body portion can include a biconvex upper and lower surfaces. And the insertion instrument is engageable to a proximal end portion of the interbody spinal implant to facilitate insertion of the interbody spinal implant into the disc space.

Abstract: A spinal fixation system includes a plurality of bone anchors and an array of receiver sub-assemblies, with each bone anchor having a common universal capture portion configured for bottom loading into one of the receiver sub-assemblies that includes at least one of a multiplanar receiver sub-assembly, a monoplanar receiver sub-assembly, and a monoaxial receiver sub-assembly that further include, respectively, a multiplanar retainer sub-assembly for providing pivotal motion of the bone anchor relative to the receiver in multiple planes, a monoplanar retainer sub-assembly for limiting pivotal motion of the bone anchor relative to the receiver to a single plane, and a monoaxial retainer sub-assembly for inhibiting all pivotal motion of the bone anchor relative to the receiver while providing of rotation the monoaxial receiver sub-assembly about the longitudinal axis of the bone anchor.