Embodiments of the invention include an external fixation system that includes at least one external fixation strut that is both acutely adjustable and precisely adjustable and related methods of adjustment. Acute adjustment may be accomplished using one or more mobile jaws that may be engaged with or disengage from a threaded rod of each external fixation strut. Precise adjustment of each external fixation strut may be accomplished after releasing a lock biased toward a locked position. When each external fixation strut's lock is released, a portion of each of the precise adjustment mechanism of each external fixation strut may be activated to increase and decrease the length of each of the at least one external fixation struts.

An external fixation system includes an upper fixation element including a semicircular geometry, and an intermediate fixation element including a circular geometry, in which the intermediate fixation element is releasably coupled with the upper fixation element. The system also includes a lower fixation element including a substantially U-shaped geometry terminating at a first end point and a second end point, in which the lower fixation element is releasably coupled with the intermediate fixation element, and an anterior fixation element including a semicircular geometry. The anterior fixation element is also fixedly coupled with the first and second end points of the lower fixation element. The system also may include at least one strut member that is releasably coupled with the intermediate fixation element and the lower fixation element. Also disclosed is a joint having a first component, a second component and an intermediate component positioned therebetween to allow for pivotable motion.

A pedicle screw implant construct kit, comprising at least one pedicle screw, at least one collar comprising a recess for receiving a rod, the collar configured to be coupled to a head of the pedicle screw, an elongated rod for connecting the collar to one more additional collars to couple between the pedicle screw and one or more additional screws, and a locking ring sized to be positioned over at least a distal portion of the collar to restrain relative movement of the screw head and rod by exerting radial compression force onto the collar. In some embodiments, the components of the kit are comprised of carbon reinforced composite material.

The present invention provides two types of a line-shaped paw-type patella external fixator, comprising A type: two ends of a line-shaped main girder are respectively provided with pressure regulating fixing parts, an arc auxiliary girder is arranged below the line-shaped main girder, and two ends of the arc auxiliary girder are respectively provided with one auxiliary fastener and fixing needles; B type: one end of B type is the same with that of the A type, a b-shaped fixing part is provided below a q-shaped fixing part on the other end, a fixing needle is provided below the b-shaped fixing part, an auxiliary fastener is provided in the middle of the line-shaped main girder, and a splayed needle seat and an auxiliary fixing needle are arranged on both sides. The fixator has advantages of easy installation, wide adjustment range and minimal damage.

External fixator assemblies, systems, and methods thereof. An external fixator system may include a plurality of fixator assemblies configured to connect a plurality of pins, for example, positioned on opposite sides of a fractured bone, with one more rods. The fixator assemblies may include a plurality of clamp assemblies positioned along a shaft and which are configured to rotate relative to one another when the fixator assembly is in an unlocked position.

An external fixation system for the correction of long bone deformities includes an elongate beam element having an engagement feature along a longitudinal edge of the elongate beam element, a connector element secured to the elongate beam and structurally configured to support a first bone anchor extending from the external fixation system, and a movable carriage engaged with the engagement feature along the longitudinal edge of the elongate beam element and selectively movable along the engagement feature of the elongate beam element. The movable carriage is selectively lockable into a position along the elongate beam element. The movable carriage is structurally configured to support a second bone anchor extending from the external fixation system.

An external fixation system for the correction of long bone deformities includes an elongate beam element having an engagement feature along a longitudinal edge of the elongate beam element, a connector element secured to the elongate beam and structurally configured to support a first bone anchor extending from the external fixation system, and a movable carriage engaged with the engagement feature along the longitudinal edge of the elongate beam element and selectively movable along the engagement feature of the elongate beam element. The movable carriage is selectively lockable into a position along the elongate beam element. The movable carriage is structurally configured to support a second bone anchor extending from the external fixation system.

External fixator assemblies, systems, and methods thereof. An external fixator system may include a plurality of fixator assemblies configured to connect a plurality of pins, for example, positioned on opposite sides of a fractured bone, with one more rods. The fixator assemblies may include a plurality of clamp assemblies positioned along a shaft and which are configured to rotate relative to one another when the fixator assembly is in an unlocked position.

Length-adjustable strut assemblies for external fixation systems, and corresponding external fixation systems, are disclosed. The strut assemblies include an elongate first and second end members, an elongate intermediate member, and first and second adjustment mechanisms. The intermediate member comprises a threaded rod fixedly coupled within an axial cavity thereof, and is rotatably fixed and axially translatably within an axial cavity of the first end member. An end portion of the second end member is received within the axial cavity of the intermediate member, and the second end member comprises an axial cavity threadably coupled with the threaded rod. The first adjustment mechanism is configured to selectively axially fix the intermediate member relative to the first end member. The second adjustment mechanism is configured to selectively rotate the second end member with respect to the threaded rod to axially translate the second end member relative to the intermediate member.

Devices and methods for treating bone fractures involving a micromotional unit (6) that produces reciprocating displacement between two fracture fragments (1) to thereby apply controllable micromotion to a fracture site.