Disclosed herein are embodiments of a system for stabilizing spinal vertebrae through a skin incision, that include a first extension (410) removably coupled with a first screw (402) at a distal end thereof, and a second extension (420) removably coupled with a second screw (404) at a distal end of the second extension. A first opening (432) extends through a wall of the first extension. Further, the first opening and the wall of the first extension adjacent to the first opening is sized and configured such that the second extension can be advanced through the first opening so that the second extension is restrained within the first opening and is positionable at an acute angle relative to an axial centerline (C) of the first extension.

Connectors for connecting or linking one instrument or object to one or more other instruments or objects are disclosed herein. In some embodiments, a connector can include a first arm with a first attachment feature for attaching to a first object, such as a surgical access device, and a second arm with a second attachment feature for attaching to a second object, such as a support. The connector can have an unlocked state, in which the position and orientation of the access device can be adjusted relative to the support, and a locked state in which movement of the access device relative to the support is prevented or limited. Locking the connector can also be effective to clamp or otherwise attach the connector to the access device and the support, or said attachment can be independent of the locking of the connector.

A surgical instrument includes a member connectable with a longitudinal element of a surgical distractor connected with vertebrae. At least one blade is connected with the member adjacent to an axis oriented transverse to the longitudinal element and being movable to space tissue adjacent the vertebrae. The at least one blade being intra-operatively translatable relative to the member along the axis. Surgical systems, constructs, implants and methods are disclosed.

A system, medical devices, and methods for use in surgical procedures, such as spinal surgeries. The system, medical devices, and methods are designed to provide a surgeon the ability to add a screw connector, or screw head such as a tulip, to pre-existing implanted bone, such as pedicle, facet, lateral mass, etc., screw system without having to remove the previously implanted screws and/or rods already existing in a patient.

Disclosed herein are embodiments of a system and embodiments of a method for stabilizing spinal vertebrae through a skin incision. In some embodiments, the system or method can include a first screw having a first screw head, a second screw having a second screw head, and a third screw having a third screw head, a first tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion, a second tower having a distal portion and a proximal portion, the second tower configured to be removably coupled with the second screw at a distal end of the second tower, and a third tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion.

A surgical system includes a first implant support that is engageable with a receiver of a first fastener having a shaft fixed with vertebral tissue. At least one adaptor includes a first adaptor extending longitudinally along and being engageable with the first implant support. The first adaptor is oriented to releasably engage a surgical instrument to distract and/or compress the vertebral tissue. An angulation module is connected to at least one of the first adaptor, the first implant support and the surgical instrument. Surgical instruments, constructs, implants and methods are disclosed.

Disclosed is a surgical alignment and distraction frame and associated methods of use that facilitates correction of a sagittal imbalance. The alignment and distraction frame works in conjunction with pedicle screw installation guide assemblies to impart the desired correction. The alignment frame can be utilized to ensure the pedicle screw housings are aligned (to facilitate rod coupling) in concert with the completion of a correction maneuver.

One aspect of the disclosure relates to vertebral body derotation (VBD) system. In one embodiment, the VBD system includes a first pair of derotation towers and a second pair of derotation towers, a first transverse coupler coupled to the first pair of derotation towers and a second transverse coupler coupled to the second pair of derotation towers, and at least one clamp configured to couple the first and second transverse connectors in the cranial-caudal direction or a first derotation tower of the first pair of derotation towers and a second derotation tower of the second pair of derotation towers in the cranial-caudal direction.

A surgical system includes an instrument portal comprising a first proximal end, a first distal end, and a first elongated member, the first elongated member comprising a first bore defining a first diameter, wherein the first bore extends from the first distal end to the first proximal end, wherein the maximum clearance of the instrument portal is the first diameter, and a drill guide reducer configured to be inserted into the instrument portal, the drill guide reducer comprising an elongated cylindrical member defining an outside diameter such that the drill guide reducer is sized to fit within the instrument portal and defining an inner diameter configured to receive a drill guide, wherein the inner diameter of the drill guide reducer is smaller than the first diameter of the instrument portal.

A transverse coupling for connecting multiple implant extensions includes at least a first sleeve and a second sleeve. The first sleeve defines a first aperture adapted to axially receive a first implant extension through the first aperture. The second sleeve defines a second aperture adapted to axially receive a second implant extension through the second aperture. The transverse coupling also includes a central housing. A first shaft connects the first sleeve to the central housing, and a second shaft connects the second sleeve to the central housing. The central housing includes at least one joint for connecting the central housing to at least one of the first and second shafts in a movable arrangement that allows the shaft(s) to move through one or more degrees of freedom relative to the central housing.