A method includes providing first and second instruments. First and second fasteners are attached with vertebrae. First fasteners are connected with first and second constructs. Second fasteners are connected with a third and fourth constructs. The first construct is connected with a body of the first instrument and the second construct is connected with another body of the first instrument. The third construct is connected with a body of the second instrument and the fourth construct is connected with another body of the second instrument. Joints of the instruments are tightened. At least one of the instruments is selectively distracted. At least one of the instruments is selectively compressed. The spinal constructs are removed from the fasteners. The first fasteners are connected with a first spinal rod. The second fasteners are connected with a second spinal rod. In some embodiments, spinal constructs, implants, systems and kits are disclosed.

A connector for slidably connecting an anchoring device to a rod in a spinal correction system, comprising a body, a coupling mechanism for coupling the body to the anchoring device, a guiding mechanism arranged to guide the rod in a sliding movement along a longitudinal direction of the rod, wherein said guiding mechanism is further arranged to prevent any movement, with respect to the rod, other than a translation along the longitudinal direction of the rod and a rotation around said longitudinal direction of the rod.

Distractor and retractor systems and methods of using the same. A pedicle-based distractor assembly may include a base supporting a distraction rack, a pair of moveable arms coupled to the distraction rack, a connector at the end of each arm, each connector having a through-opening, and a pair of distractor elements each configured to attach to a pedicle screw. Each distractor element may be positioned through the through-opening in the respective connector. The distractor elements are modular such that different types of distractor elements, such as headless posts, pre-assembled posts, or minimally invasive towers, are interchangeable with the connectors. The assembly may also include a retractor assembly with a medial retractor blade for retracting soft tissue. The medial retractor blade may have one or more translating components at a distal for retracting soft tissue.

Methods of applying a locking cap to a bone anchor assembly. The bone anchor assembly includes a bone anchor and an elongate rod. The bone anchor includes a body that defines a channel and has a tissue retractor coupled thereto that defines a partial pathway to the channel.

Featured is a vertebral body manipulation instrument or vertebral body manipulation device being configured and arranged to allow correction of vertebral translation. Such a vertebral body manipulation device embodies one or more identical modules that are configured as needed for correcting the deformity. Such a vertebral body manipulation device also is usable in combination with a plurality of vertebral anchors, such vertebral anchors being any such vertebral anchors as are known to those skilled in the art (e.g., conventional spinal pedicle screw instrumentation) or hereinafter developed so as to form a spinal implant system. Also featured are treatment methods utilizing such a vertebral body manipulation device.

A system for implanting a bone fixation system including an implant head inserter associated with each hook member and positionable relative to one of the elongate members to engage the hook member with the elongate member; a preliminary locking instrument associated with each implant head inserter and configured to engage the respective elongate member and lock the position of the hook member and implant head inserter relative to the elongate member; a compressor assembly configured to engage the implant head inserters and compress them toward one another; a path creation tool configured to be extended through holes in the hook members to define a connector member path between the hook members; and a rod introduction instrument configured to support the connector member and direct it through the connector member path. Methods of implanting a bone fixation system are also provided.

Treatment of spinal irregularities, including, in one or more embodiments, derotation apparatus and systems that can be used to reduce the rotation of vertebral bodies. Derotation apparatus that may comprise a tube assembly comprising an inner sleeve and an outer sleeve disposed over the inner sleeve. The inner sleeve may have a distal end for attachment to an implant. The tube assembly may further comprise a handle assembly. The tube assembly may further comprise a ball joint assembly disposed between the tube assembly and the handle assembly. The ball joint assembly may comprise a ball joint configured for attachment to a coupling rod. The ball joint assembly further may comprise a reducing extension below the ball joint, the reducing extension being sized to fit in a central bore of the inner sleeve. Orthopedic fixation devices comprising a ball joint are also disclosed.

Methods of applying a locking cap to a bone anchor assembly. The bone anchor assembly includes a bone anchor and an elongate rod. The bone anchor includes a body that defines a channel and has a tissue retractor coupled thereto that defines a partial pathway to the channel.

Featured is a vertebral body manipulation instrument or vertebral body manipulation device being configured and arranged to allow correction of vertebral translation. Such a vertebral body manipulation device embodies one or more identical modules that are configured as needed for correcting the deformity. Such a vertebral body manipulation device also is usable in combination with a plurality of vertebral anchors, such vertebral anchors being any such vertebral anchors as are known to those skilled in the art (e.g., conventional spinal pedicle screw instrumentation) or hereinafter developed so as to form a spinal implant system. Also featured are treatment methods utilizing such a vertebral body manipulation device.

A surgical instrument includes a first arm having a slot and a part defining a cavity configured for disposal of a spinal implant. The part is sagittally movable relative to vertebrae and selectively fixable relative to the first arm. A second arm includes a slot and a part defining a cavity configured for disposal of the spinal implant. The part of the second arm is sagittally movable relative to the vertebrae and selectively fixable relative to the second arm. The first arm has a member that is movable within the slot of the second arm and the second arm has a member that is movable within the slot of the first arm to facilitate movement of a first vertebral surface relative to a second vertebral surface. Systems, spinal constructs, implants and methods are disclosed.