Abstract: A spatial series-parallel pelvic fracture reduction robot includes a base support, a mobile platform module, an arc-shaped guide rail platform module, a robot module, and a pelvic external fixator which are connected in sequence. The mobile platform module is fixedly connected on an upper part of the base support and is used for driving the arc-shaped guide rail platform module to linearly translate up and down and left and right; a connecting sliding block of the arc-shaped guide rail platform module is connected to the robot module and used for enabling the robot module to move along an arc-shaped guide rail; the robot module includes a robot and a clamping mechanism, the robot is used for adjusting a spatial pose of the clamping mechanism, and the clamping mechanism is used for fixing bone needles; the pelvic external fixator is used for firmly fixing the pelvis.

Abstract: A robotic rod bender is disclosed. The robotic rod bender includes an autoclavable top assembly that includes a rod feeding subassembly, a brake subassembly, and a bending subassembly. The rod bending subassembly, the bending subassembly, and the brake assembly are disposed on a top plate. The robotic rod bender also includes a motor housing that includes one or more motors, a spline shaft, and a linear actuated elevator assembly. The linear actuated elevator assembly includes a linear actuator, a movable plate, and a mid-plate. The spine shaft extends from the moveable plate. The autoclavable top assembly is removably disposed atop the mid-plate.

Abstract: A claw-shaped pedicle screw fastener for osteoporosis includes an inner screw plug and an outer screw; the outer screw includes an outer nut and an outer screw stem, a through hole is defined in and penetrates through the outer nut and the outer screw stem, the outer screw stem has a thread segment, a claw-shaped segment, and a conical segment that are provided on outside of the outer screw stem; the claw-shaped segment is made of deformable metal; the inner screw plug includes an inner nut and an inner screw stem, the inner screw stem is inserted into the through hole, and the inner screw stem is threadedly connected to the first inner thread and the second inner thread; the inner screw stem and the second inner thread are reverse thread screws relative to each other.

Abstract: A bone hook apparatus is provided that includes a base, a rod receptacle disposed on a proximal side of the base, a first hook distally extending from the base and oriented in a first direction, and a second hook distally extending from the base and oriented in a second direction opposing the first direction, the first hook and second hook together configured to receive the bone. Kits and spinal constructs employing the bone hook apparatus are also described.

Abstract: A bone anchor insertion device for delivering one or more bone anchor components into bone is provided. The insertion device improves surgical control in bone anchor location, placement and insertion into target bone. The bone anchor insertion device also improves efficiency in placing the bone anchor. The surgical instrument provides improved control of stylet location and orientation, including directional control for precise bone anchor component insertion. Methods to use the bone anchor insertion device in surgical procedures are also provided.

Abstract: A surgical instrument includes a first member and an actuator disposed with the first member. An assembly is provided that includes a second member engageable with a bone fastener receiver. A third member is rotatable relative to the second member and threadably engageable with the bone fastener receiver to capture the bone fastener receiver. Systems, spinal constructs, implants and methods are disclosed.

Abstract: A wearable robot for integrated fracture reduction and rehabilitation, comprising a proximal ring, a distal ring, six driving branch chains, motor driving device and manual driving device; the six driving branch chains are divided into two groups, each of them comprises a platform connecting sleeve, a sliding bearing, a bearing locking nut, a proximal Hooke hinge, an intermediate prismatic pair, a sleeve, a force sensor, and a distal Hooke hinge; one end of the driving branch chain is connected with the proximal ring by a connecting sleeve fastener, and the other end is connected with the distal ring by nut, each driving branch chain is connected with the driving devices via D-shaped shaft sleeve. The wearable robot has electric-manual dual model driving, and the branch chain can be quickly replaced during and after the operation.

Abstract: Methods and apparatus for accessing and repairing a vertebral disc include a pad with a central cut-out mounted to the skin of a patient or, alternatively, a pedicle-mounted support. An incision is made and then a corridor is created using an elongated guide and a series of dilating tubes. An access to the disc space is created through the superior articular process and the facet joint using the corridor defined by the dilating tubes. Nucleus material is removed from the disc space and the vertebral endplates are prepared. The disc space may be sized to select a suitable implant, which is advanced through the corridor and into the disc space following discectomy and endplate preparation. Bone graft material may be inserted into the disc space following installation of the implant and then posterior rigid fixation may be achieved using percutaneous pedicle screws, followed by closure of the site.

Abstract: A spinal procedure includes attaching a first reduction instrument to a first guide assembly and a second guide assembly. The first reduction instrument includes a fixed attachment assembly and a translating attachment assembly that cooperatively interfaces the fixed attachment assembly. The first guide assembly is attached to a first pedicle and the second guide assembly is attached to a second pedicle. The first reduction instrument is moved to reduce an orientation of the spine, while imaging a reduction of the orientation of the spine. An angle and position of the first reduction instrument is locked upon achieving a desired reduction. The spine may then be fused.

Abstract: A system and method for the minimally invasive insertion of an intervertebral rod into the vertebrae of a subject, according to a preoperative surgical plan also defining positions for the insertion of rod clamping screws into the vertebrae. The rod shape for connecting the heads of the screws is calculated, and a path planning algorithm used to determine whether the distal end of the rod can be threaded through the screw heads by longitudinal and rotational manipulation of the proximal end of the rod. If so, instructions are provided for forming that rod shape and for the robotic insertion of the screw holes and the rod. If not, either or both of the screw positions and the rod shape are adjusted, to moderate the bends in the rods, until insertion becomes possible. The insertion can be performed robotically, or, if a navigation tracking system is added, manually.

Abstract: An external fixation strut and corresponding systems and methods of use with a bone alignment device are disclosed. The external fixation strut may provide an enhanced range of adjustable lengths and may be connected to a bone alignment device, thereby enabling the bone alignment device to be used over a larger workable range. As a result, comfort of a patient may be improved as the need to switch out the external fixation strut may be prevented. The external fixation strut may also include a single measurement scale that may be easily viewed and used to adjust the length of the external fixation strut, thereby ensuring more accurate length adjustments.

Abstract: A plate and an installation tool are provided for preventing a spinal facet joint implant from expulsing from its implant location between a superior and an inferior vertebra. A k-wire is used in cooperation with the plate and installation tool to guide them to the desired location. The plate includes a central threaded bore situated between one or two superior bone screw or bone connection barb bores and one or two inferior bone screw or bone connection barb bores. The installation tool includes a threaded plug at one end for receipt by the plate's central threaded bore for releasably holding the plate during installation. The installation tool has a superior structure and an inferior structure that can be a cannula or tang depending on the plate's form.

Abstract: Inflatable spinal implants are disclosed for intra-vertebral or inter-vertebral reduction and fixation of osteoporotic fractures in a spine. An inflatable implant may include an inflatable member having an interior for receiving a hardenable fluid and an expandable jacket to cause differential and directional expansion of the inflatable member. A one-way valve may be configured to prevent hardenable fluid from escaping out of the inflatable member. An inflatable implant may include a connection fixation device having a fluid coupling configured for releasable engagement with an inflation cannula and an anchoring portion configured for holding the implant in place within a vertebra. The fluid coupling may also be configured for releasable engagement with an anti-rotation device, which may be used to hold the implant stationary to facilitate engagement and disengagement of the inflation cannula with the fluid coupling. Related systems and methods are also described.

Abstract: A screw tower that is a single-use instrument that attaches to existing screws but remains open along a rod slot to allow for screws to intermesh and prevent interference of adjacent screws during screw and rod insertion. The screw tower interfaces with existing features of the screws to facilitate screw insertion, rod insertion, rod reduction, and locking cap insertion in a percutaneous approach. The tower is broken in half and removed from patient to end with a completed construct.

Abstract: Intramedullary nails, aiming guide assemblies, and methods. The aiming guide assembly can include an aiming guide having an elongate proximal handle portion. A generally arcuate distal implant alignment tip connector portion is connected to the proximal handle portion and has a distal implant alignment tip extending along a tip axis parallel to a longitudinal axis of the proximal handle portion. A recon module may be releasably attached to a proximal end of the proximal handle portion. An oblique module may be releasably attached to the distal implant alignment tip portion.

Abstract: An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body extending from an upper surface to a lower surface. The body has a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear walls such that an internal chamber is defined within the front and rear ends and the first and second walls. The body defines an outer perimeter and an inner perimeter extending about the internal chamber. At least one of the side walls is defined by an integral porous structure.

Abstract: A spinal fixation device is provided having first and second elongate members that are angularly adjustable relative to one another. Each elongate member can include a connecting feature formed on a terminal end thereof, and each connecting feature can be coupled to one another to allow angular movement of the first and second elongate members. The device can also include a locking mechanism that is adapted to couple to the connecting feature on each of the first and second elongate members to lock the elongate members in a fixed position relative to one another.

Abstract: A surgical device includes a polyaxial surgical screw that includes an internally hollow tulip. The tulip includes two elongated rods which are parallel and mutually spaced apart, each elongated rod protruding from a side wall of the tulip and extending away from a first end of the tulip in a direction opposite to a second end of the tulip. The rods define a channel in communication with the first end for accessing the interior of the tulip. A locking unit can be reversibly mounted on the polyaxial surgical screw. The locking unit includes a tubular body which has an inner cavity and is adapted to be fitted about the elongated rods during a configuration of use of the surgical device. The tubular body has two mutually opposite protrusions which project into the inner cavity that are configured to face the channel and be mutually interposed.

Abstract: Systems and method of using a surgical driver instrument are provided. The driver instrument includes a driver shank having a proximal end including a head connector for a bone construct. The instrument includes an inner sleeve having a length and configured to receive the driver shank therein and a handle member having a first end and a second end. The inner sleeve and the driver shank have a non-threaded connection. The instrument includes an outer sleeve connected to the second end and concentric with the inner sleeve and a sleeve actuator assembly coupled to the handle member. The sleeve actuator assembly includes a first position where a portion of the length of the inner sleeve extends out from the handle member and a second position where the portion of the length of the inner sleeve that is extended from the handle member is retracted into the handle member.

Abstract: A method comprises the steps of: imaging a patient anatomy; selecting an implant strategy for at least one bone fastener having a first member; registering the imaging of the patient anatomy with imaging of at least a portion of a robot; engaging the first member with tissue of the patient anatomy via robotic guidance according to the implant strategy; and subsequently, manipulating the patient anatomy. Systems, spinal constructs, implants and surgical instruments are disclosed.