Abstract: The present invention is generally directed to orthopedic fixation devices that comprise a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element. The orthopedic fixation devices described herein can include modular locking clamp assemblies that can be fixed onto fasteners that are already implanted in bone. The modular locking clamp assemblies can include polyaxial locking clamp assemblies, as well as monoaxial locking clamp assemblies.

Abstract: Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.

Abstract: A method of stabilizing a spine providing a fixation system, the fixation system including, a bone fastener, and a modular assembly attachable to the bone fastener. The modular assembly includes a tulip element and a ring element positioned in the tulip element to restrict motion between the bone fastener and the tulip element to uniplanar motion.

Abstract: Embodiments are generally directed to an apparatus for reducing a rod into an orthopedic fixation device. An embodiment provides a rod-reducing apparatus. The rod-reducing apparatus may comprise a housing comprising a threaded through bore. The rod-reducing apparatus further may comprise a reduction shaft comprising a shaft portion and a through bore in the shaft portion, wherein the shaft portion may be configured to be received within the threaded through bore of the housing. The locking cap driver may comprise a locking cap driver comprising a shaft portion that may be configured to be received within the through bore of the reduction shaft, wherein a distal end of the shaft portion may be configured for attachment to a locking cap assembly.

Abstract: Embodiments are generally directed to an apparatus for reducing a rod into an orthopedic fixation device. An embodiment provides a rod-reducing apparatus. The rod-reducing apparatus may comprise a housing comprising a threaded through bore. The rod-reducing apparatus further may comprise a reduction shaft comprising a shaft portion and a through bore in the shaft portion, wherein the shaft portion may be configured to be received within the threaded through bore of the housing. The locking cap driver may comprise a locking cap driver comprising a shaft portion that may be configured to be received within the through bore of the reduction shaft, wherein a distal end of the shaft portion may be configured for attachment to a locking cap assembly.

Abstract: A closed-head polyaxial screw for use in spinal instrumentation for spinal fusion, treatment of deformity, or the like. Polyaxial screws may have a two-part design, with the screw fitting into an aperture in the closed head. One or more clamps may secure the bone screw in the aperture. A closed-head polyaxial screw having a one part design is also disclosed. In addition, a one-part monaxial screw is described.

Abstract: A closed-head polyaxial screw for use in spinal instrumentation for spinal fusion, treatment of deformity, or the like. Polyaxial screws may have a two-part design, with the screw fitting into an aperture in the closed head. One or more clamps may secure the bone screw in the aperture. A closed-head polyaxial screw having a one part design is also disclosed. In addition, a one-part monaxial screw is described.

Abstract: Systems, devices and methods related to spinal stabilization are provided. A system can comprise a plurality of cross-links. Each of the cross-links can include a central rod holder that extends substantially along a mid-line of the spine and a pair of extension members extending from the central rod holder. The extension members can be secured to a vertebral body via a fixation device, such as a spinal screw or a hook member having serrations and/or side-cuts. One or more rod members can be extended across the central rod holders of the cross-links, thereby forming a stable spinal stabilization system providing bilateral stress distribution across different levels of the spine.

Abstract: A closed-head polyaxial screw for use in spinal instrumentation for spinal fusion, treatment of deformity, or the like. Polyaxial screws may have a two-part design, with the screw fitting into an aperture in the closed head. One or more clamps may secure the bone screw in the aperture. A closed-head polyaxial screw having a one part design is also disclosed. In addition, a one-part monaxial screw is described.

Abstract: The present invention is generally directed to orthopedic fixation devices that comprise a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element. The orthopedic fixation devices described herein can include modular locking clamp assemblies that can be fixed onto fasteners that are already implanted in bone. The modular locking clamp assemblies can include polyaxial locking clamp assemblies, as well as monoaxial locking clamp assemblies.

Abstract: Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.

Abstract: The invention is directed to orthopedic fixation devices that comprise a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element. The orthopedic fixation devices described herein can include modular locking clamp assemblies that can be fixed onto fasteners that are already implanted in bone. The modular locking clamp assemblies can include polyaxial locking clamp assemblies, as well as monoaxial locking clamp assemblies.

Abstract: Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.

Abstract: A joint spacer therapeutically maintains separation of bones of a joint. A carriage is slideably retained within the frame and has at least one ramped surface. An actuator screw is threadably engaged with the frame, and rotatably connected to the carriage, to cause the carriage to slideably move within the frame when the actuator screw is rotated. First and second endplates engage the bones of the joint, and each has at least one ramped surface that is mateable with the ramped surface of the carriage, whereby when the carriage is slideably moved by rotation of the actuator screw, the endplates ramped surface slides against the carriage ramped surface to cause the endplates to move along an axis transverse to the longitudinal axis of the frame, to increase the height of the spacer. Piercing elements are connected to the carriage to pierce bone of the joint when the carriage is moved.

Abstract: In one embodiment, a medical device includes an elongate member, a first coupler, and a second coupler. The elongate member has a first end portion, a second end portion, and a side portion. The side portion of the elongate member has a first receiving portion and a second receiving portion. The first receiving portion is configured to receive a first support member. The second receiving portion is configured to receive a second support member. The first coupler is coupled to the elongate member and is configured to engage the first support member to help retain the first support member within the first receiving portion. The second coupler is coupled to the elongate member and is configured to engage the second support member to help retain the second support member within the second receiving portion.

Abstract: Embodiments are generally directed to an apparatus for reducing a rod into an orthopedic fixation device. An embodiment provides a rod-reducing apparatus. The rod-reducing apparatus may comprise a housing comprising a threaded through bore. The rod-reducing apparatus further may comprise a reduction shaft comprising a shaft portion and a through bore in the shaft portion, wherein the shaft portion may be configured to be received within the threaded through bore of the housing. The locking cap driver may comprise a locking cap driver comprising a shaft portion that may be configured to be received within the through bore of the reduction shaft, wherein a distal end of the shaft portion may be configured for attachment to a locking cap assembly.

Abstract: A joint spacer therapeutically maintains separation of bones of a joint. A carriage is slideably retained within the frame and has at least one ramped surface. An actuator screw is threadably engaged with the frame, and rotatably connected to the carriage, to cause the carriage to slideably move within the frame when the actuator screw is rotated. First and second endplates engage the bones of the joint, and each has at least one ramped surface that is mateable with the ramped surface of the carriage, whereby when the carriage is slideably moved by rotation of the actuator screw, the endplates ramped surface slides against the carriage ramped surface to cause the endplates to move along an axis transverse to the longitudinal axis of the frame, to increase the height of the spacer. Piercing elements are connected to the carriage to pierce bone of the joint when the carriage is moved.

Abstract: Embodiments are generally directed to an apparatus for reducing a rod into an orthopedic fixation device. An embodiment provides a rod-reducing apparatus. The rod-reducing apparatus may comprise a housing comprising a threaded through bore. The rod-reducing apparatus further may comprise a reduction shaft comprising a shaft portion and a through bore in the shaft portion, wherein the shaft portion may be configured to be received within the threaded through bore of the housing. The locking cap driver may comprise a locking cap driver comprising a shaft portion that may be configured to be received within the through bore of the reduction shaft, wherein a distal end of the shaft portion may be configured for attachment to a locking cap assembly.

Abstract: Systems, devices and methods related to spinal stabilization are provided. A system can comprise a plurality of cross-links. Each of the cross-links can include a central rod holder that extends substantially along a mid-line of the spine and a pair of extension members extending from the central rod holder. The extension members can be secured to a vertebral body via a fixation device, such as a spinal screw or a hook member having serrations and/or side-cuts. One or more rod members can be extended across the central rod holders of the cross-links, thereby forming a stable spinal stabilization system providing bilateral stress distribution across different levels of the spine.

Abstract: Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.