Abstract: A receiver assembly for securing an elongate rod to a bone anchor includes a receiver having a channel configured to receive the elongate rod, a helically wound receiver guide and advancement structure formed into the interior surfaces of the receiver. The receiver assembly further includes a fastener configured for positioning within the channel to secure the elongate rod to the receiver in a locked configuration, with the fastener having an outer surface with a mating continuous helically wound guide and advancement structure configured for rotatable engagement with the receiver guide and advancement structure.

Abstract: A spinal rod anchoring device is disclosed comprising a body comprising a distal end and a proximal end, wherein a threaded bone anchor is positioned toward the distal end, and a U-shaped head portion is positioned toward the proximal end. The head portion and the threaded bone anchor are fixedly attached. The spinal rod anchoring device also comprises a saddle comprising a concave interior region wherein the interior region has an open channel. The saddle is moveably seated within the base of the head portion, and a spinal connection element is disposed on the saddle. The spinal rod anchoring device further comprises a retaining pin configured to be inserted through the channel in the saddle and secured in a groove, wherein the groove is centrally positioned within the head portion, wherein the retaining pin secures the saddle to the head portion.

Abstract: An implant constituted of: a body exhibiting a longitudinal axis; proximal arms extending from the body, each of the proximal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the proximal arms; distal arms extending from the body, each of the distal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the respective directions of extension of the distal arms generally opposing the respective directions of extension of the proximal arms, the body positioned between the distal arms; and intermediate arm assemblies extending from the body, each of the intermediate arm assemblies extending in a respective direction rotated about the longitudinal axis from the respective extension directions of the proximal arms and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the intermediate arm assemblies.

Abstract: A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system farther includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

Abstract: The present invention relates to expandable sleeves, expandable sleeve systems, and their methods of use. In certain aspects, the expandable sleeves are compatible with commonly used speculums to enhance visualization and access of an orifice. The expandable sleeves sheathe over the blades of a speculum and form a taut barrier when the blades are opened to hold back the walls of a tissue orifice and cavity. The expandable sleeves include inflatable pouches that further push back the walls of the orifice. In certain aspects, the expandable sleeves are useful in performing pelvic exams, such as in patients having lax vaginal walls or excess surrounding tissue.

Abstract: Disclosed herein are systems and methods for intervertebral body fusion that provide more robust support within the disc space. Intervertebral body fusion devices can have a unitary monolithic body including a plurality of body segments interconnected with each other by flexure members. Devices be configured to be inserted through an opening in a compressed configuration and then expanded within the disc space to an expanded configuration. In the expanded configuration, devices can have a greater mediolateral or transverse to the disc space footprint. This wider footprint provides greater support for the vertebrae relative to the size of the opening through which the device is inserted.

Abstract: An intervertebral prosthesis for insertion between adjacent vertebrae includes an upper plate, a lower plate and a core. The core is retained between the upper and lower plates by a retention feature in the form of central projections on the plates and a corresponding opening in the core. The retention feature is designed to allow the plates to slide over the upper and lower surfaces of the core in the anterior/posterior direction and in the lateral direction and to allow the plates to rotate with respect to each other and the core. The retention feature is also designed to prevent contact between the first and second plates during sliding movement of the plates over the core. Each central projection has a diameter that is smaller than a smallest diameter of a central opening of the core.

Abstract: Provided is a novel rod reducing device including a screw jack mechanism that is moveably engaged with an elongated grasping fork assembly, the screw jack mechanism having an elongated threaded portion, the elongated threaded portion being connected at its most distal end to a rod contact member, which is positioned in sliding circumferential contact with each of the two opposing elongated grasping members and the most proximal end of the elongated threaded portion terminating in a controlling member, which can be activated in a measured and controlled manner. A method of using the device is also provided.

Abstract: A cannula comprising a monolithic, flexible body having a central passageway bounded by a first flange and a second flange, the central passageway having an irregular shape and a diaphragm positioned therein, the first diaphragm having the same irregular shape and including at least one first diaphragm slit, and a second diaphragm positioned adjacent to or at one of the first or second flanges and having at least one second diaphragm slit.

Abstract: Expandable fusion devices, systems, and methods. The expandable fusion device includes one or more integrated deployable retention spikes configured to resist expulsion of the device when installed in the intervertebral disc space. The implant may include upper and lower main endplates, an actuator assembly configured to cause an expansion in height of the upper and lower main endplates, and a sidecar assembly including a sidecar carrier, an upper carrier endplate pivotably coupled to an upper spike, and a lower carrier endplate pivotably coupled to a lower spike such that forward translation of the sidecar carrier pushes against the upper and lower carrier endplates, thereby deploying the upper and lower spikes.

Abstract: A spinal jack adapted for installation between first and second vertebral processes, including a three dimensional and arcuate ergonomic main body constructed from first and second subset body portions, from which is displaceable an upper body between retracted and expanded positions. Each of the jack halves further includes gripping portions adapted for engaging the vertebral processes. A geared mechanism is provided for expanding or retracting the jack halves in order to establish a corrected adjusted orientation between the processes.

Abstract: A multi-diameter fixation pin, such as a K-wire can be used during an orthopedic procedure. The multi-diameter fixation pin may include a leading diameter sized for the specific orthopedic procedure being undertaken and/or the size of the bone into which the fixation pin is being inserted. The multi-diameter fixation pin may include a trailing diameter different than the leading diameter. The trailing diameter may be sized for use with a specific sized powered driver. For example, in orthopedic procedures that involve inserting larger diameter pins and smaller diameter pins into bone(s), all pins used in the procedure may have a trailing diameter (e.g., the larger diameter or the smaller diameter) that allows the pins to be inserted with the same powered driver (e.g., the same attachment head) without needing different sized drivers or attachment heads for different sized pins.

Abstract: A retractor is designed to assist in cuff implantation procedure. It has a flat non-cutting retracting end at the distal. Its function is to isolate tissue of interest, to make access, and to retract tissue for cuff placement and removal while protecting critical tissue at the surgical site.

Abstract: A computer-implemented method for producing a treatment plan to control manipulation of a fixation apparatus including a first element and a second ring and struts to correct an anatomical structure deformity of first and second anatomical structure segments, including: receiving, using one or more graphical user interfaces of a computing system, configuration information associated with the fixation apparatus, the configuration information comprising one or more geometric characteristics of one or more elements of the fixation apparatus and ring deformation information; receiving, by the computing system, images of the fixation apparatus and the first and the second anatomical structure segments attached thereto; determining, by the computing system, based on the configuration information and the received images, positions and orientations of the first and the second anatomical structure segments in three-dimensional space relative to the fixation apparatus; determining the hole locations of the first elemen

Abstract: A method of treating scoliosis in a subject includes securing a scoliosis treatment device to first and second locations on the subject's skeletal system, the scoliosis treatment device including a first portion, a second portion moveably mounted relative to the first portion, and an adjustment device disposed on the device and configured to change a distraction force between the first location and the second location, the adjustment device including a rotationally mounted magnetic element configured to move the second portion relative to the first portion in response to rotation of the magnetic element. An external adjustment device is provided external to the subject and is able to adjust the distraction force between the first location and second location.

Abstract: One or more connectors insertable into a surgical incision to couple rods together. The connector may include one or more bushings or joints to displace the one or more rods in one or more directions to a variety of orientations. One or more fasteners and/or bushings may be used to engage the one or more rods.

Abstract: An intervertebral fusion cage includes first and second endplate members, first and second ramp members, and an actuator. The first and second ramp members and first and second endplate members have complementary ramp surfaces that engage to expand the height of the fusion cage and to impart a lordotic profile to the fusion cage.

Abstract: An expandable implant may include a superior endplate and an inferior endplate. The superior endplate may have at least one track extending in a proximal-to-distal direction and an inferior endplate may have at least one track extending in the proximal-to-distal direction. An adjusting shim may be disposed within the at least one track to adjust a spacing and angle of inclination of the implant. Some embodiments may include a plurality of tracks for adjusting a spacing and an angle of inclination between the superior endplate and the inferior endplate. Some embodiments may be configured to adjust an orientation of the implant relative to a disc space in both the sagittal plane and the coronal plane. Various embodiments disclosed herein may be used in an Anterior lumbar interbody fusion (ALIF), Transforaminal lumbar interbody fusion (TLIF), or a lateral Lumbar Interbody Fusion (LLIF) procedure, for example.

Abstract: Systems and methods for en bloc derotating a spinal column are provided. In one exemplary embodiment, the method can include manipulating first and second frames coupled respectively to a first set of vertebrae and a second set of vertebrae to derotate the first and second sets of vertebrae relative to one another, and subsequently locking a linkage assembly coupled respectively to the first and second frames to maintain the first and second sets of vertebrae in a derotated position.

Abstract: A method for treating a spinal disorder includes the steps of: disposing an expandable spinal construct in a selected configuration; fixing the spinal construct in the selected configuration with a member; attaching a first end of the spinal construct with tissue; attaching a second end of the spinal construct with tissue; and disengaging the member from the spinal construct to release the spinal construct from the selected configuration. Implants, surgical instruments, systems and methods are disclosed.