Abstract: A modular apparatus for extending a rod in an existing spinal construct comprises a modular rod connector for attachment to the existing rod and a modular rod extender that may be selectively attached to the rod connector. Each rod connector includes a spherical head that is formed to have the same size and configuration such that any selected modular rod extender may be attached to a selected rod connector. Each rod connector comprises an attachment portion having an opening for receipt of a portion of the rod of an existing spinal construct. Each modular rod extender comprises an extender body including a common modular attachment feature at one end for receipt of the spherical head of the selected rod connector, and an extension rod extending from an opposite end to extend the existing spinal rod.

Abstract: Methods for anterior fusion and posterior fusion spinal procedures are disclosed. The spinal procedure may be a minimally invasive procedure. An incision may be made on a back of a patient to provide percutaneous lateral access to a spine of the patient. The access point of Kambin's triangle may be used to reach an intervertebral disc space. Through the incision and with an anterior trajectory, an interbody cage may be inserted into the intervertebral disc space. Thereafter, through the same incision and with a posterior trajectory, a spinal fusion implant may be inserted into an interspinous process space or an interlaminar space. The procedure may be performed through a single incision. The same surgical instrumentation may be used for both the anterior fusion and the posterior fusion procedures.

Abstract: Various methods and devices are provided for allowing multiple surgical instruments to be inserted into sealing elements of a single surgical access device. The sealing elements can be movable along predefined pathways within the device to allow surgical instruments inserted through the sealing elements to be moved laterally, rotationally, angularly, and vertically relative to a central longitudinal axis of the device for ease of manipulation within a patient's body while maintaining insufflation.

Abstract: A tensegrity external fixation system utilizes a tensegrity external fixator having a compression portion and a tension portion that create a force to distract bone. A tensegrity external fixator has a compressor assembly with an extension that is compresses by a tension element, such as a tension band. In an embodiment, the tension band is coupled with a bone via a stud that is attached to the bone. The tension band may extend through a stud retainer, such as a loop coupled with the stud. A single extension may be used and compressed to cause the extension to bow between a tension band or wires. In an exemplary embodiment, a compressor assembly has a compression element that is compressed by the one or more extensions. Two extensions may extend from a compressor coupling having a compression element and manipulation of the extensions may place the compression element in compression.

Abstract: Described herein are retrograde femoral nails and insertion systems suitable for stabilizing femoral fractures of the shaft and femur. After reaming the femoral canal, the intramedullary nail may be inserted with a retrograde approach through the knee. The nail includes four-start threaded holes in the distal region. The nail also includes oblique distal holes with a trajectory that targets the bone in the posterior condyles. The insertion instrumentation assembly and system includes an insertion handle with a retaining thread that prevents the connection bolt from falling out. An assembly shaft is also included, which assists the user in connecting the nail to the insertion handle. The system further includes an aiming guide with a retention mechanism that holds driver sleeves in place. The aiming guide also contains a hole to position a locking washer holder to interface with the nail.

Abstract: A retractor extension clip deployment system for use with a surgical retractor includes at least an extension clip adapted for engagement with the surgical retractor, the extension clip having proximal and distal ends, a deployment instrument, and a fluid transport assembly adapted to be affixed to the surgical retractor and comprising one or more tubes for transporting fluid including smoke removal.

Abstract: Surgical instruments, methods, and systems are provided for securing spinal fixation elements to bone. For example, a spinal fixation system is provided that has a receiver with proximal and distal ends. The proximal end of the receiver is configured to receive various fixation members, such as spinal rods and set screws, therein. The distal end of the receiver has a hook member that is operably coupled thereto and has an opening that is configured to receive bone therein. The hook member is configured to be secured to bone without penetrating the bone.

Abstract: A spinal construct includes a first member. The first member includes a proximal portion defining a first cavity and a distal portion defining a second cavity disposed at an angle relative to the first cavity. The distal portion is configured for connecting with a second member. The second member is configured for fixation with vertebral tissue. A crown defines a first opening aligned with the first cavity and a second opening aligned with the second cavity. Implants, systems, instruments and methods are disclosed.

Abstract: An expandable interbody spacer for placement between adjacent vertebrae having two or more upper and lower endplates and lateral expansion wedges configured to couple a drive means to expand both a height and a width of the expandable interbody spacer from a collapsed state to an expanded state.

Abstract: The present disclosure relates to software used in planning the correction of bone deformities preoperatively or postoperatively, and in particular relates to virtually manipulating rings and struts of an external fixation frame in order to plan the steps for making a desired correction to two or more bone portions of a patient. The software can be used prior to surgery, allowing a user to virtually define a bone deformity, and virtually add and manipulate fixation rings and struts to the bone deformity. Based on the virtual manipulations, a correction plan can be generated that describes length adjustments that should be made to the plurality of model struts over a period of time to correct the bone deformity. The software can also be used after surgical fixation of the fixation frame and struts to the deformed bone.

Abstract: A coupling assembly for coupling a rod to a bone anchoring element is provided, wherein the coupling assembly includes a receiving part having a first end, a second end, a central axis extending through the first end and second end, an accommodation space for accommodating a head of an anchoring element, a bore extending from the accommodation space to the first end, and a recess for receiving a rod. The accommodation space has an opening at the second end sized to permit insertion of a head of the bone anchoring element. The coupling assembly further includes a retainer element configured to be positioned at least partially in the accommodation space and being radially expandable and/or compressible to allow retaining a head inserted through the opening. The retainer element is held in position adjacent the opening by an engagement structure provided at or in the accommodation space.

Abstract: A spinal fixation device includes a pair of substantially s-shaped plates, each plate having an outer surface and a bone contact surface and at least one aperture therethrough. A bolt joins the plates at a desired orientation, through the aperture. The bolt includes a head with a rounded or beveled base for facilitating fixation of the plates with a spinous processes while the plates are tilted or rotated with respect to one another and the spinal column.

Abstract: The device for treating early onset scoliosis includes first and second tubes having first and second rods slidably disposed therein. The first tube is adapted for fixation to at least one middle vertebra of a patient's spine such that an open end thereof faces upward and a closed end thereof faces downward. The second tube is also adapted for fixation to at least one middle vertebra such that an open end thereof faces downward and a closed end thereof faces upward. A lower end of the first rod is positioned within the first tube and is resiliently biased. An upper end of the first rod is adapted for fixation to at least one upper vertebra. An upper end of the second rod is positioned within the second tube and is resiliently biased. A lower end of the second rod is adapted for fixation to at least one lower vertebra.

Abstract: An implant comprises a unitary body including an intramedullary portion connected to an extramedullary portion. The unitary body is configured to attach a first bone section to a second bone section. The intramedullary portion has a first longitudinal axis, and is configured for insertion into the first bone section. The intramedullary portion includes at least one first fastener aperture having an aperture axis oriented obliquely relative to the first longitudinal axis. The extramedullary portion is configured to abut a surface of the second bone section and includes at least one second fastener aperture disposed to transversely receive a bone fastener inserted in the second bone section. The extramedullary portion has a second longitudinal axis offset from, the first longitudinal axis.

Abstract: An expandable implant (100, 150, 160, 200, 250, 300, 400) has a base (10) and a displaceable element (12) hingedly interconnected at one end. At the other end, the base and the displaceable element are formed with complementary jaws (24, 26) which provide continuous overlap of facing surfaces over a range of angular positions of the displaceable element relative to said base. In some cases, the first end portion (16) of the displaceable element (12) is formed with projecting teeth (28) forming a partial gear centered on an axis (18) of the hinged interconnection with the base (12) for engaging a worm gear. In certain embodiments, the base is formed with a socket (30) for removably receiving a worm gear tool (32) for engaging the teeth (28) and displacing said displaceable element. After expansion, the worm-gear tool (32) can be removed.

Abstract: The present invention relates to an improved orthopaedic device for athrodesis, in particular for the arthrodesis or fusion of a joint, for example an ankle joint, of the type comprising of a nail having head and tip ends opposed to each other; at least a first portion of the nail having an axis of symmetry; a single circular first transverse hole made in the first portion near the head of the nail and extended according to its own axis perpendicularly to the axis of symmetry; a slotted second transverse hole still made in the first portion of the nail and extended perpendicular to both the first axis of symmetry; and to the axis of the first transverse hole; and the slotted second transverse hole being made at a greater distance with respect to the head of the nail than the distance from the head of the first transverse hole.

Abstract: An implant is disclosed. The implant has a first endplate, a second endplate, a base disposed between the first endplate and the second endplate, a plurality of adjustment arms operably connecting the base with the first endplate and the second endplate, and a plurality of pins disposed on at least one of the first endplate and the second endplate. The plurality of pins have different lengths. The plurality of adjustment arms are rotatably connected to a plurality of hubs that are axially slidable on at least some of the plurality of pins.

Abstract: Connectors are disclosed herein that can be used to attach a rod to a bone anchor assembly that is already occupied by a separate rod. Various ways of attaching the connector to the bone anchor assembly are disclosed, including arrangements in which the connector is locked to the bone anchor, arrangements in which the connector is constrained in one or more degrees of freedom relative to the bone anchor, arrangements in which the connector is adjustable in one or more degrees of freedom relative to the bone anchor, and arrangements that include a spherical articulation joint. In some embodiments, attachment of the connector to a bone anchor can be aided with the use of a positioner. The geometry of the connector can be selected to minimize the offset between a first rod received in the bone anchor assembly and a second rod received in the connector, for example using an angled or curved rod recess and/or a fastener, or set screw, that is offset from the center of the rod or angled relative to the bone anchor.

Abstract: A surgical connection device for a spine is disclosed including a stabilization member, compression arms and traction arms, the device being used in conjunction with first anchor points fixed to vertebrae at a first lateral side of the spine and second anchor points fixed to vertebrae at a second lateral side of the spine. A first spinal rod may be attached to the first anchor points and a second spinal rod may be attached to the second anchor points. The compression arms connect the stabilization member to the first and second anchor points or rods and bear compressive forces. The traction arms connect the stabilization member to the first and o second anchor points or rods and bear tensile forces. Application of both tensile and compressive forces via the device may serve to straighten, change a direction of bending or increase a degree of bending of the rods and/or spine. The use of the traction arms may also provide for a more flexible construct.

Abstract: The present invention relates to the field of devices and methods for distraction osteogenesis, and, more particularly, to distraction devices and distraction systems used in the treatment of mandibular or maxillary alveolar ridge atrophy, and to methods for utilizing a distraction device or a distraction system for bone tensioning.