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: An expandable implant includes a base member, an adjustable member adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, a control assembly including a control shaft, wherein manipulation of the control shaft causes relative movement of the adjustable member relative to the base member, wherein the base member and the adjustable member are coupled together at least in part via the control assembly such that the control shaft is rotationally fixed relative to the base member and the adjustable member, and the adjustable member is resiliently compressible relative to the base member.

Abstract: A foot bone plate provides both fixation of two bones or bone portions and compression across their juncture. The foot bone plate has a plurality of bone screw bores positioned to receive and hold a bone screw on both sides of the two bones/bone portions (i.e. fixation), and a lateral flange positioned to receive and hold a bone screw across the foot bones/foot bone portions juncture (i.e. compression). The foot bone plate has an elongate body having a plurality of bores along its length configured to receive and hold a bone screw generally perpendicular to the foot bone plate and into the two foot bone portions. A flange is positioned at a side of the plate and includes a bore to receive and hold a bone screw. The flange and flange bore positions and holds the bone screw such that it extends through the juncture of the two bones/bone portions.

Abstract: A system for providing access to a surgical site includes a first dilator; a second dilator slidably couplable to a first side of the first dilator and including a first interface portion; a plurality of additional dilators slidably couplable to a second side of the first dilator in a nested manner; and at least one retractor member including a second interface portion removably couplable to the first interface portion. When the first interface portion is coupled to the second interface portion, and the second dilator and the plurality of additional dilators are coupled to the first dilator, the second dilator and the at least one retractor member form a retractor wall extending about the first dilator and the plurality of additional dilators.

Abstract: A spinal implant for immobilizing the C1 vertebra with respect to the C2 vertebra of the spine provides controlled coupling between the C1 and C2 vertebrae, and includes a C1 component attachable to the C1 vertebra, two C2 components attachable to the C2 vertebra, and a transverse element. The C1 component has two wings each of which retains a rod holder that rotates and translates for capturing a C2 component rod. Each C2 component has a hook for connection with a side of the C2 vertebra lamina and a rod for attachment to one of the rod holders of the C1 component. Each C2 component receives and secures the transverse connector which holds position of the C2 components relative to one another. Each C2 component may include a plate configured for compression against the C2 vertebra spinous process, with each plate including spikes to aid in preventing construct migration.

Abstract: An expandable implant includes a top support configured to engage a first portion of vertebral bone, a bottom support configured to engage a second portion of vertebral bone, and a control assembly coupled to the top support and the bottom support and configured to control relative movement between the top support and the bottom support. The control assembly includes a control member including a head and a body portion. The head includes a recess and the body portion includes at least one access port in fluid communication with the recess to enable delivery of fluid to an interior of the implant via the recess and at least one access port.

Abstract: An expandable implant including a base member including a top surface, a first end, and a second end, and defining a central cavity positioned between the first end and the second end. The expandable implant further including an adjustable member including a top surface and at least one control channel, wherein the adjustable member is adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position, a control shaft received by the base member, wherein manipulation of the control shaft causes relative movement of the adjustable member relative to the base member, and at least one control member coupled to the control shaft and received by the control channel, wherein manipulation of the control shaft causes the control member to translate along the control channel.

Abstract: An expandable implant includes a top support configured to engage a first portion of vertebral bone, a bottom support configured to engage a second portion of vertebral bone, and a control assembly coupled to the top support and the bottom support and configured to control relative movement between the top support and the bottom support. The control assembly includes a control member including a head and a body portion. The head includes a recess and the body portion includes at least one access port in fluid communication with the recess to enable delivery of fluid to an interior of the implant via the recess and at least one access port.

Abstract: An expandable implant includes a top support assembly defining an upper surface configured to engage a first portion of vertebral bone; a bottom support assembly defining a lower surface configured to engage a second portion of vertebral bone; and a control assembly coupled to the top support assembly and the bottom support assembly and configured to control relative movement between the top support assembly and the bottom support assembly between a collapsed position and an expanded position. In the collapsed position, the upper surface is generally parallel to the lower surface, and in the expanded position, a portion of the upper surface extends at an acute angle relative to a portion of the lower surface.

Abstract: A spinal interbody device includes a base link comprising a first end and a second end, the base link including a cutout extending through the base link between the first end and the second end; a linkage including a first link having a first end coupled to the first end of the base link and a second end, the first link including a first aperture extending through the first link and defining a first longitudinal axis; and a second link having a first end coupled to the second end of the first link and a second end coupled to the second end of the base link, the second link including a second aperture extending through the second link and defining a second longitudinal axis. The base link and the first and second links define top and bottom surfaces configured to engage adjacent portions of bone, and first and second sides extending between the top and bottom surfaces.

Abstract: A retractor assembly includes a base, a first side assembly, a second side assembly, and a medial arm assembly. The first side assembly is coupled to a first side of the base and translates relative to the base along a first direction. The second side assembly is coupled to a second side of the base and configured to translate relative to the base along the first direction. The medial arm assembly is coupled to the base and can extend in an extension direction and retract in a retraction direction. The extension direction is opposite the retraction direction. The extension direction and the retraction direction are perpendicular to the first direction. The medial arm assembly includes a body, and a blade assembly. The blade assembly includes a receiving portion and a medial blade. The receiving portion and the medial blade are rotatably interfaced via a ball and a socket.

Abstract: A spinal interbody device includes a base link having a first end and a second end, a linkage including a first link having a first end coupled to the first end of the base link and a second end, and a second link having a first end coupled to the second end of the first link and a second end coupled to the second end of the base link. The base link and the first and second links define top and bottom surfaces configured to engage adjacent portions of bone, and first and second sides extending between the top and bottom surfaces. The device further includes at least one radiographic element provided in at least one of the first link and the second link and positioned such that the radiographic element provides an indication of a degree of expansion of the device when the device is imaged from one of the first side and the second side of the device.

Abstract: A retractor assembly includes a base, a first side assembly coupled to a first side of the base and configured to translate relative to the base along a first direction, a first tap assembly coupled to the first side assembly and configured to threadingly engage bone, a second side assembly coupled to a second side of the base and configured to translate relative to the base along the first direction independent from the first side assembly, a second tap assembly coupled to the second side assembly and configured to threadingly engage bone, and a center assembly coupled to a center portion of the base. At least a portion of the center assembly is configured to translate relative to the base along a second direction different from the first direction.

Abstract: A retractor assembly includes a base; a first side arm assembly coupled to a first side of the base and configured to translate relative to the base along a first direction; a second side arm assembly coupled to a second side of the base and configured to translate relative to the base along the first direction independent from the first side arm assembly; and a central arm assembly coupled to a center portion of the base and configured to translate relative to the base along a second direction different from the first direction.

Abstract: A device for insertion into a spinal (intervertebral or intravertebral) space is expandable and contractable. The device includes a body assembly, a top member configured to fit within a gap in the body assembly, a drive gear disposed within the body assembly at a distal end of the body assembly, a proximal gear assembly, and a distal gear assembly. The drive gear includes a receiver accessible from outside the body assembly and configured to be rotated in order to rotate the drive gear. Each gear assembly is attached to the top member. The distal gear assembly engages the drive gear. Rotation of the drive gear in a first direction causes the gear assemblies to translate the top member away from the body assembly, and rotation of the drive gear in a second direction causes the gear assemblies to translate the top member towards the body assembly.

Abstract: A spinal implant for immobilizing the C1 vertebra with respect to the C2 vertebra of the spine provides controlled coupling between the C1 and C2 vertebrae, and includes a C1 component attachable to the C1 vertebra, two C2 components attachable to the C2 vertebra, and a transverse element. The C1 component has two wings each of which retains a rod holder that rotates and translate for capturing a C2 component rod. Each C2 component has a hook for connection with a side of the C2 vertebra lamina and a rod for attachment to one of the rod holders of the C1 component. Each C2 component receives and secures the transverse connector which holds position of the C2 components relative to one another. Each C2 component may include a plate configured for compression against the C2 vertebra spinous process, with each plate including spikes to aid in preventing construct migration.

Abstract: An expandable implant includes a base member including a top surface, a first end, and a second end, and defining a central cavity positioned between the first end and the second end; an adjustable member including a top surface and at least one control channel, wherein the adjustable member is adjustably coupled to the base member and movable between a first, collapsed position, and a second, expanded position; a control shaft rotatable received by the base member, wherein rotation of the control shaft cause relative movement of the adjustable member relative to the base member; and at least one control member received on the control shaft and by the control channel, wherein rotation of the control shaft causes the control member to translate along the control shaft and along the control channel.

Abstract: A retractor assembly includes a base; a first side arm assembly coupled to a first side of the base and configured to translate relative to the base along a first direction; a second side arm assembly coupled to a second side of the base and configured to translate relative to the base along the first direction independent from the first side arm assembly; and a central arm assembly coupled to a center portion of the base and configured to translate relative to the base along a second direction different from the first direction.

Abstract: A wedge-shaped bone implant, particularly but not necessarily, for fixing bones of the foot is provided. The implant has bone screw bores that are each configured to hold a bone screw at a particular angle for receipt in a foot bone, eliminating the need to also use a plate. The implant can include an opening that extends through the implant body from one tapered side thereof to the other tapered side thereof. This opening allows the introduction and retention of bone graft material to promote bone fusion. One or both tapered sides of the body may also have teeth, serrations or the like. The implant body may include a hole or the like in the distal aspect thereof. This allows for the insertion of a metallic component (e.g. titanium or tantalum) to allow for the visibility of the extent of the implant body in radiography, x-ray, or the like.