Abstract: Provided is a novel rod reducing device for use in spinal fixation procedures. The device is capable with a single action of securely grasping the head of a bone screw while reducing a connecting rod into the head of the bone screw and while in position on the bone screw provide a cannula access for a bone screw locking cap and tightening instrument and securing the bone screw during the tightening of the locking cap so as to provide an anti-torque effect. The device is also capable of releasing from the bone screw with a reversal of the single action used to activate the device. A method of using the device and a kit wherein the device is one component is also provided.

Abstract: A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by pulling it out of the wound whereby the retractor is deformed to pass over the pedicle screw head. The retractor is intended to be made of a stiff plastic material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed.

Abstract: A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed as an integrally formed part of the tulip of a pedicle screw assembly with opposed arms of the retractor spread apart to open the wound proximally. The arms are removed by separating the arms from the tulip and pulling it out of the wound. The retractor device is intended to be made of a stiff material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed.

Abstract: Provided is an iliosacral polyaxial screw system. A multiple part insert member is provided to secure the screw to the housing of the assembly to accommodate screws in which the shank diameter of the screw is greater than the bottom opening of the screw housing or greater than the opening of a ring member designed to capture the head of the screw in the housing.

Abstract: A pedicle screw construct includes a pedicle screw, a coupling, and a collet. The pedicle screw includes a shank having a helical thread formed thereon and a head at one end. The collet is positioned atop the head of the pedicle screw. The collet and pedicle screw are inserted into the coupling. The pedicle screw is rotatable and pivotable relative to the collet and coupling assembly. The collet and the coupling each have a saddle that is adapted and configured for receiving a rod member.

Abstract: An endplate for an intervertebral prosthesis includes an inner domed region (330) and a peripheral rim (332) wherein the inner domed region has a non-circular plan and has an area that is at least 50% of the area of the endplate. A surgical instrument for milling a recess in a vertebral endplate includes a cutting tool having a drive shaft with a positioning collar, a guard frame, and a pair of guide plates attached to the guard frame and space to confine the positioning collar and having guide slots for the drive shaft.

Abstract: Provided is an iliosacral polyaxial screw system. A multiple part insert member is provided to secure the screw to the housing of the assembly to accommodate screws in which the shank diameter of the screw is greater than the bottom opening of the screw housing or greater than the opening of a ring member designed to capture the head of the screw in the housing.

Abstract: A system and method for inserting an implant into a cavity is disclosed, which may include advancing an implant insertion instrument toward a pair of adjacent bodies, the implant insertion instrument having two opposed ramps, wherein each ramp has a distal tip and wherein the longitudinal axes of the opposed ramps are separated by an initial angle; inserting the distal tips of the opposed ramps between the adjacent bodies, thereby creating an initial interbody cavity between the adjacent bodies; expanding the interbody cavity while maintaining the initial angle between the longitudinal axes of the opposed ramps; placing the implant in a final location between the adjacent bodies; transferring a compressive force urging the adjacent bodies together from the opposed ramps to the implant; and extracting the implant insertion instrument from the interbody cavity.

Abstract: A spinal spacer for engagement between vertebrae includes a body having a substantially contoured first end surface at a distal end and a second end surface opposite thereto at a proximal end. The body extends between the first and second end surfaces to define top and bottom vertebral engaging surfaces that are opposed to one another. The body extends between the top and bottom vertebral engaging surfaces to define opposed side surfaces. The top and bottom vertebral engaging surfaces intersect with the side surfaces to provide a substantially quadrilateral cross-section with rounded corners. The top and bottom vertebral engaging surfaces have a substantially streamlined convex profile. The surfaces converge at the distal end to define a substantially atraumatic blunt nose having a tip configured with planar and/or convex surfaces.

Abstract: The present invention features new methods, apparatuses and devices for fixing adjacent bone segments, segments of a bony structure and adjacent vertebrate of a spine. The methods, apparatuses and devices utilize a new apparatus for forming a channel in a surface of the bone or bony structure segments or adjacent vertebra or a channel submerged within the bone or bony structure segments or adjacent vertebra. In more particular embodiments such apparatuses and methods including forming an arcuate channel and which channel can receive therein a curved rod or implant member, which also preferably is arcuate, and avoids the associated problems with prior cage or straight rod and screw systems. Also featured are systems, apparatuses and methods for repairing, replacing or augmenting the nucleus and/or annulus of a disc.

Abstract: A spinal implant includes a body, plate, and bone screws. The body includes a first wall having second and third walls joined thereto to define legs. In an embodiment, the body and plate are of unitary construction. In alternative embodiments, the body is formed from a first material and is configured for positioning between vertebral bodies. In other embodiments, the body is separate from the plate. The plate has a main portion and a flange. The main portion has a first screw hole oriented towards the first vertebral body at an oblique angle relative to the horizontal axis of the body. The flange has a second screw hole oriented towards the second vertebral body and substantially parallel to the horizontal axis. The flange is coupled to the main portion and extends past the main portion. Each bone screw is insertable through a screw hole of the plate for attachment to bone. A kit including a body, bone screws, and a plurality of different plates is also provided.

Abstract: A spinal implant includes a body, plate, and bone screws. The body includes a first wall having second and third walls joined thereto to define legs. In an embodiment, the body and plate are of unitary construction. In alternative embodiments, the body is formed from a first material and is configured for positioning between vertebral bodies. In other embodiments, the body is separate from the plate. The plate has a main portion and a flange. The main portion has a first screw hole oriented towards the first vertebral body at an oblique angle relative to the horizontal axis of the body. The flange has a second screw hole oriented towards the second vertebral body and substantially parallel to the horizontal axis. The flange is coupled to the main portion and extends past the main portion. Each bone screw is insertable through a screw hole of the plate for attachment to bone. A kit including a body, bone screws, and a plurality of different plates is also provided.

Abstract: Systems for improved methods of performing a spinal fusion procedure that include a monorail instrument having a sliding platform for additional instrumentation to allow controlled delivery of various instruments for disc preparation and implant insertion in order to protect the medial neural structures of the spine. The monorail instrument engages other instruments, including various instruments utilized to prepare the disc space as well as spinal fusion implants, for guided and controlled insertion into the disc space. The monorail instrument may be a distractor, and may include flutes for preparation of the disc space.

Abstract: A bone fixation device adapted to be coupled to bone anchors that allows movement of rods to permit a screw-rod construct to lengthen in response to bone growth without necessitating post surgical installation adjustment of the device. The bone fixation device includes a locking mechanism that is operably associated with a housing to allow relative movement of a rod and a housing in a first direction and inhibiting relative movement of the rod and the housing in a second direction.

Abstract: A rod reducing device includes an elongate member, a pair of jaw members, a sleeve having a cam pin, and an actuation lever. Translation of the cam pin along the inner surfaces of the jaw members pivotally moves the jaw members between a receiving position in which distal end portions of the respective jaw members are widened and an engaging position in which the distal end portions of the respective jaw members are move toward each other to engage the head of the bone screw. The actuation lever is movable between an open in which a distal end portion of the sleeve is disposed proximal of the distal end portions of the jaw members and a closed position in which the distal end portion of the sleeve is disposed distal of the distal end portions of the jaw members for reducing the connecting rod.

Abstract: Systems providing improved methods of performing a spinal fusion procedure and including a monorail instrument that protects the medial neural structures, includes a sliding platform for additional instrumentation and allows controlled delivery of various instruments for disc preparation and implant insertion. The monorail instrument engages other instruments, including various instruments utilized to prepare the disc space as well as spinal fusion implants, for guided and controlled insertion into the disc space. The monorail instrument may be a distractor, and may include flutes for preparation of the disc space.

Abstract: Systems and methods for surgical spinal correction are disclosed. A system including a plurality of bone screws, spinal rods, manipulators, and/or transverse couplers is disclosed for the manipulation of the spinal column is disclosed. A method of achieving, in a single action, manipulation and/or rotation of the spinal column using the disclosed system is disclosed. Also disclosed is a method of conducting spinal surgery to correct spinal deformities wherein spinal rods are pre-bent in a physiological sagittal plane prior to attachment of the vertebrae using bone screws.

Abstract: A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed as a co-molded part of the tulip of a pedicle screw assembly with opposed arms of the retractor spread apart to open the wound proximally. The arms are removed by separating the arms from the tulip and removing them from the incision. The retractor device is intended to be made of a relatively stiff material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed.

Abstract: A spinal fixation device for securing to a spine includes a body having one or more longitudinal members extending between a pair of wedge members. Each wedge member defines one or more openings therethrough for the reception of a bone screw. The wedge members are disposed on opposite ends of the one or more longitudinal members. One of the wedge members is positionable within a first intervertebral space and the other wedge member is positionable within a second intervertebral space. The one or more longitudinal members define a length that spans one or more vertebrae. The one or more longitudinal members are positionable within the one or more vertebrae when the wedge members are positioned within the respective first and second intervertebral spaces to maintain the body in a minimal profile orientation relative to the spine.

Abstract: A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by pulling it out of the wound whereby the retractor is deformed to pass over the pedicle screw head. The retractor is intended to be made of a stiff plastic material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed.