Abstract: Systems and methods are disclosed for maintaining spacing between a superior spinous process and a superior lamina, and an inferior spinous process and an inferior lamina of adjacent vertebrae of a spine. A system may include an implant having a proximal superior surface with a superior concavity shaped to receive the superior spinous process, a proximal inferior surface with an inferior concavity shaped to receive the inferior spinous process, a distal superior surface, distal to the proximal superior surface, that faces the superior lamina, and a distal inferior surface, distal to the proximal inferior surface, that faces the inferior lamina. The implant may further have a threaded member extending along a proximal-distal direction, that rotates to urge the implant to move from a retracted configuration to a deployed configuration by urging the distal superior surface and the distal inferior surface to move apart.

Abstract: An expandable intervertebral implant that includes an upper endplate having: a proximal end with a proximal ramp, and a distal end with a distal ramp. The proximal ramp includes a pair of upper proximal rails and the distal ramp includes a pair of upper distal rails. The expandable intervertebral implant also includes a lower endplate that includes a proximal end, a proximal ramp, a distal end, and a distal ramp. The proximal ramp includes a pair of lower proximal rails and the distal ramp includes a pair of lower distal rails. The at least one of the lower distal rails and the lower proximal rails is closer to a central plane than one or more of the upper distal rails and the upper proximal rails. The central plane divides a left side from a right side of the expandable intervertebral implant.

Abstract: In some implementations, the interbody implant may include an anterior side, a posterior side, a cephalad side, a caudal side, a right side, and a left side. In addition, the interbody implant may include a proximal end and a distal end. The interbody implant may include a mesh having a first set of pores having a first diameter based on a first relationship to a first locus and a second set of pores having a second diameter based on a second relationship to the first locus. Moreover, the interbody implant may include where at least one of the anterior side, posterior side, left side, right side, cephalad side, and caudal side may include the mesh.

Abstract: Systems and methods are disclosed for maintaining spacing between a superior spinous process and a superior lamina, and an inferior spinous process and an inferior lamina of adjacent vertebrae of a spine. A system may include an implant having a proximal superior surface with a superior concavity shaped to receive the superior spinous process, a proximal inferior surface with an inferior concavity shaped to receive the inferior spinous process, a distal superior surface, distal to the proximal superior surface, that faces the superior lamina, and a distal inferior surface, distal to the proximal inferior surface, that faces the inferior lamina. The implant may further have a threaded member extending along a proximal-distal direction, that rotates to urge the implant to move from a retracted configuration to a deployed configuration by urging the distal superior surface and the distal inferior surface to move apart.

Abstract: An expandable intervertebral implant that includes an upper endplate having: a proximal end with a proximal ramp, and a distal end with a distal ramp. The proximal ramp includes a pair of upper proximal rails and the distal ramp includes a pair of upper distal rails. The expandable intervertebral implant also includes a lower endplate that includes a proximal end, a proximal ramp, a distal end, and a distal ramp. The proximal ramp includes a pair of lower proximal rails and the distal ramp includes a pair of lower distal rails. The at least one of the lower distal rails and the lower proximal rails is closer to a central plane than one or more of the upper distal rails and the upper proximal rails. The central plane divides a left side from a right side of the expandable intervertebral implant.

Abstract: Systems and methods are disclosed for maintaining spacing between a superior spinous process and a superior lamina, and an inferior spinous process and an inferior lamina of adjacent vertebrae of a spine. A system may include an implant having a proximal superior surface with a superior concavity shaped to receive the superior spinous process, a proximal inferior surface with an inferior concavity shaped to receive the inferior spinous process, a distal superior surface, distal to the proximal superior surface, that faces the superior lamina, and a distal inferior surface, distal to the proximal inferior surface, that faces the inferior lamina. The implant may further have a threaded member extending along a proximal-distal direction, that rotates to urge the implant to move from a retracted configuration to a deployed configuration by urging the distal superior surface and the distal inferior surface to move apart.

Abstract: An expandable intervertebral implant is disclosed for use in between adjacent vertebral bodies in a spine. An expandable intervertebral implant may include an upper plate having a first upper side and a second upper side, a lower plate having a first lower side, a second lower side, and a first lattice that connects the first upper side to the first lower side. The expandable intervertebral implant may further include a second lattice that connects the second upper side of the upper plate to the second lower side of the lower plate and an opening having a longitudinal axis between the upper plate, lower plate, first lattice, and second lattice. The expandable intervertebral implant may further include an expansion mechanism comprising a driver that expands the upper plate and the lower plate away from each other along a cephalad-caudal axis by deforming the first lattice and the second lattice.

Abstract: Systems and methods are disclosed for maintaining spacing between a superior spinous process and a superior lamina, and an inferior spinous process and an inferior lamina of adjacent vertebrae of a spine. A system may include an implant having a proximal superior surface with a superior concavity shaped to receive the superior spinous process, a proximal inferior surface with an inferior concavity shaped to receive the inferior spinous process, a distal superior surface, distal to the proximal superior surface, that faces the superior lamina, and a distal inferior surface, distal to the proximal inferior surface, that faces the inferior lamina. The implant may further have a threaded member extending along a proximal-distal direction, that rotates to urge the implant to move from a retracted configuration to a deployed configuration by urging the distal superior surface and the distal inferior surface to move apart.

Abstract: A polyaxial bone anchor assembly, comprising: a threaded screw portion comprising a head end; a head body disposed concentrically about the head end of the threaded screw portion; and a saddle assembly disposed within the head body and selectively engaging the head end of the threaded screw portion; wherein, when the saddle assembly is translated within the head body into a first locked position, the head body is coupled to the threaded screw portion such that disengagement of the head body from the threaded screw portion is allowed; and wherein, when the saddle assembly is translated within the head body into a second locked position, the head body is coupled to the threaded screw portion such that disengagement of the head body from the threaded screw portion is prevented.

Abstract: The present invention provides a minimally-invasive surgery pedicle screw and rod assembly, inserter tool, and insertion method for use in spinal stabilization procedures and the like. The screw and rod assembly utilizes a screw head body that has a pair of tab extenders that extend longitudinally from the head body to a point well outside of the skin and musculature of the patient. A rod is coupled to and translated along these tab extenders, ultimately into proximity with the head body. The rod is inserted into, aligned with, and translated along the length of the tab extenders, and then selectively pivoted about an enlarged partial spherical bearing into a configuration that is substantially perpendicular to the tab extenders and the head body. The present invention also provides an inserter tool that is used to dispose the rod concentrically within the tab extenders, translate the rod along the length of the tab extenders, and then pivot the rod with respect to the tab extenders and the head body.

Abstract: A spinal fixation system includes a low profile dynamic anterior vertebral body plate and bone screws for the fixation and stabilization of the cervical spine. The system has a locking element through which the bone screw passes and the locking element is capable of movement relative to the plate when the bone screws are fully inserted and in a locked position.

Abstract: Provided is a surgical instrument having an adjustable distal end that can securely engage an interbody for introduction of the interbody into an intervertebral space, can be adjusted before and during the surgical procedure to vary the angle of the distal end of the device and the angle of introduction of the interbody, and after positioning that interbody at the surgical site, can be easily disengaged and removed.

Abstract: Provided is a surgical instrument having an adjustable distal end that can securely engage an interbody for introduction of the interbody into an intervertebral space, can be adjusted before and during the surgical procedure to vary the angle of the distal end of the device and the angle of introduction of the interbody, and after positioning that interbody at the surgical site, can be easily disengaged and removed.

Abstract: The present invention provides a minimally-invasive surgery pedicle screw and rod assembly, inserter tool, and insertion method for use in spinal stabilization procedures and the like. The screw and rod assembly utilizes a screw head body that has a pair of tab extenders that extend longitudinally from the head body to a point well outside of the skin and musculature of the patient. A rod is coupled to and translated along these tab extenders, ultimately into proximity with the head body. The rod is inserted into, aligned with, and translated along the length of the tab extenders, and then selectively pivoted about an enlarged partial spherical bearing into a configuration that is substantially perpendicular to the tab extenders and the head body. The present invention also provides an inserter tool that is used to dispose the rod concentrically within the tab extenders, translate the rod along the length of the tab extenders, and then pivot the rod with respect to the tab extenders and the head body.

Abstract: A polyaxial bone anchor assembly, comprising: a threaded screw portion comprising a head end; a head body disposed concentrically about the head end of the threaded screw portion; and a saddle assembly disposed within the head body and selectively engaging the head end of the threaded screw portion; wherein, when the saddle assembly is translated within the head body into a first locked position, the head body is coupled to the threaded screw portion such that disengagement of the head body from the threaded screw portion is allowed; and wherein, when the saddle assembly is translated within the head body into a second locked position, the head body is coupled to the threaded screw portion such that disengagement of the head body from the threaded screw portion is prevented.

Abstract: Provided is a surgical instrument having an adjustable distal end that can securely engage an interbody for introduction of the interbody into an intervertebral space, can be adjusted before and during the surgical procedure to vary the angle of the distal end of the device and the angle of introduction of the interbody, and after positioning that interbody at the surgical site, can be easily disengaged and removed.

Abstract: Provided is a novel surgical instrument having an adjustable distal end that can securely engage an interbody for introduction of the interbody into an intervertebral space, can be adjusted before and during the surgical procedure to vary the angle of the distal end of the device and the angle of introduction of the interbody, and after positioning that interbody at the surgical site, can be easily disengaged and removed.

Abstract: Provided is a novel system that includes a low profile anterior vertebral body plate and quick lock screws for the fixation and stabilization of the cervical spine, the quick lock screw having an integral novel screw locking mechanism of a locking thread disposed on at least a portion of the side of the screw head, which engages an inwardly directed screw hole flange and thus attaches to the plate so as to lock the screw into the plate Also provided is a method of stabilizing cervical vertebrae using the disclosed system.

Abstract: Provided is a novel system that includes a low profile dynamic anterior vertebral body plate and bone screws for the fixation and stabilization of the cervical spine, the system having a locking element through which the bone screw passes, the locking element being capable of movement relative to the plate when the bone screws are fully inserted and in a locked position. Also provided is a method of stabilizing cervical vertebrae using the disclosed system.

Abstract: Provided is a device, system, and method for the fixation of the spine. In particular, the present invention provides a system that includes a low profile anterior vertebral plate and screws for fixation and stabilization of the cervical spine, the anterior vertebral plate having a selectable locking mechanism embedded in the underside of the plate during the manufacturing thereof and providing a visual locked indicator on the top side of the plate.