Dynamization tabs and methods of use are provided. Dynamization tabs may be used with an external fixation ring or other fixator device as part of a therapeutic treatment of bone fractures or malformations. The device forms a connection between one or more fixation struts and an external fixation ring so as to introduce controllable amounts of movement or dynamization to the arrangement of the struts and the fixator. By introducing controlled amounts of dynamization, therapeutic benefits can be derived in the enhanced, accelerated bone formation, mineralization and remodeling of the underlying bone. Dynamization tabs may comprise a strut connector, a mechanical biasing or dynamizing device, and a ring connector. Many different forms for introducing controlled amounts of dynamization are disclosed.

A polyaxial external fixation strut including a strut member and a first ball joint coupled to an end portion of the strut member. The first ball joint includes a first ball joint body and a first ball member. The first ball member is rotatably coupled to the first ball joint body to allow for variable angle adjustable positioning of the first ball member within the first ball joint body. The first ball joint additionally includes a friction member. The friction member is configured to create friction between the first ball member and the first ball joint body.

Pair of dynamic external fixation devices (100) for the reduction of fractures of bone fragments, said devices (100) being arranged on either side of a first bone portion traversed by a first pin (10) in a proximal position and a second bone portion traversed by a second pin (11) in distal position, while each of the dynamic external fixation devices (100) includes a first body (1) having a longitudinal axis profile (X, X), having a proximal bore (5) passing through an axis (Y, Y) in combination with the first pin (10), said first body (1) being embedded in a first coil spring (8), while said first spring (8) is nested in a second coil spring (12), mounted in conjunction with a second body mounted in conjunction on said first body (1), while the second body is mounted in conjunction with the second pin (11).

A device, kit, and method for the treatment of anatomical joint dysfunctions, and more particularly, to a spring hinge comprising: a primary coil spring having a helical structure with a central cavity, wherein the primary coil spring forms a plurality of spirals layered against one another when the primary coil spring is in an unexpanded state; wherein the primary coil spring comprises surfaces that are configured to nest against each other to resist translational or shearing movement between adjoining spiral layers.

An orthopedics restoration fixation device includes: a clamping mechanism and a shock absorbing mechanism. The clamping mechanism includes: a first base; a first clamping assembly and a second clamping assembly cooperating with each other and adjustably mounted on the first base; and an adjustment assembly mounted on the first base and configured to move the first clamping assembly and the second clamping assembly towards each other or away from each other. The shock absorbing mechanism is connected to the clamping mechanism and is configured to alleviate an external impact on the clamping mechanism.

A dynamization device may comprise a sleeve, a shaft, a dial, a contact feature, and a biasing member. The shaft may comprise an interior section partially within an inner recess of the sleeve; a flat surface on the interior section of the shaft; and a plurality of external threads on the interior section of the shaft. The dial may comprise a body disposed partially within the inner recess; an annular lip; and internal threads secured to external threads of the shaft. The contact feature has an annular geometry disposed within the inner recess of the sleeve. The biasing member may be disposed around the interior section of the shaft, and disposed between the contact feature and a shoulder within the inner recess of the sleeve. Rotation of the annular lip may provide for compressive movement of the biasing member relative to the sleeve and shaft.

An external orthopedic fixation device. The external orthopedic device includes a radius fixing member, a metacarpus fixing member, and a coupling member. The radius fixing member is configured to be secured to a radius bone of a patient. The metacarpus fixing member is configured to be secured to a metacarpus bone of the patient. The coupling member is disposed between the radius fixing member and the metacarpus fixing member. The coupling member is configured to connect the radius fixing member and the metacarpus fixing member.

A force adjustable spring distractor device having an elongated, relatively thin guide plate, a force adjusting rod member having first and second oppositely threaded portions, first and second anchor bodies mounted on the guide plate and the threaded portions of the rod, first and second distractor bodies mounted on the guide plate and the rod, and first and second distraction springs connecting the anchor bodies to the distractor bodies, whereby rotation of the force adjusting rod results in separation of the anchor bodies and elongation of the distraction springs, thereby imparting a separation force to the distractor bodies.

A dynamic strut for external fixation constructs has first and second sub-struts that are axially adjustable in length and rotational position relative to one another, with the first sub-strut supporting a first dual universal joint with a first attachment peg for connection to an external fixator, and the second sub-strut supporting a second dual universal joint with a second attachment peg for connection to an external fixator. The first and second dual universal joints each include first and second ball-and-socket joints, whereby the associated attachment peg is adjustable in orientation. Set screws fix orientation of the attachment peg relative to the first ball-and-socket joint and the housing. Angular orientation of the first dual universal joint is fixed while angular orientation of the second dual universal joint is adjustable. The second sub-strut supports an axially movable shaft that supports the second dual universal joint. An adjustor allows the first and second sub-struts to axially translate relative to each other to increase or decrease length.

A dynamization device includes a first module and a second module. The first and second modules are each rigidly affixed to and mated together by one or more deformable rings. Each of the first and second modules includes an inner column positioned within the one or more deformable rings. The mated first and second modules form a first displacement gap between the inner column of the first module and the inner column of the second module. The first displacement gap extends along the longitudinal axis between adjacent deformable rings of the one or more deformable rings.