The present disclosure provides a fastener that has a body that has an axis. The body comprises a head portion and at least one body portion projecting from the head portion. The at least one body portion has an actuating surface portion and is arranged such that at least a part of the at least one body portion is urged away from the axis when an actuating member is received along the axis and urges against the actuating surface portion. The at least one body portion has a substantially flat surface portion facing away from the axis.

A spinal implant including a body having an insert received within a bottom portion of the body, the insert receiving a bone screw at a bottom portion for attachment to a spine, a rod assembly received within a rod slot on a side portion of the body wherein the rod slot does not extend through a top surface of the body, and a locking nut received within a top portion of the body and interlocking with a top portion of the insert. Spinal implant assembly, including multiple spinal implants interconnected through rod assemblies. Method of using a spinal implant by inserting spinal implant at bone structure of a spine, tightening the locking nut, drawing the body upwards, compressing the insert against the bone screw head, and contacting a lower surface of locking nut and rod assembly and compressing rod assembly against the insert, thus locking rod assembly and bone screw.

Active compression devices, methods of assembly and methods of use are disclosed. A bone fixation device may include a first member, a second member shaped to engage the first member, and at least one deformable member. A bone fusion device including a female member with a proximal and distal end, a male member with a proximal and distal end, and at least one elastic element positioned between the female member and the male member. A bone plating device including a first member, a second member shaped to engage the first member, and at least one deformable member positioned between the first member and the second member. Methods of assembling and using the bone fixation devices, bone fusion devices, and bone plating devices are also disclosed.

A growing rod for mounting between attachment mechanisms that are secured to anatomical structures of a patient having scoliosis. The growing rod includes a base rod having an attachment end, an extendable rod that is translatable relative to the base rod along a longitudinal axis and a housing enclosing at least a portion of the extendable rod therein. A magnet is rotatably mounted within the housing and is enclosed by a top magnet cover and a bottom magnet cover. The magnet includes a first pole and a second pole. A gear reduction mechanism is associated with the magnet and the extendable rod. The gear reduction mechanism reduces an output rotation to the extendable rod relative to an input rotation from the magnet.

An implantable growing rod assembly adapted to be secured along a length of a spine for treating deformities of the spine. The assembly includes a housing, a fixed rod extending along a longitudinal axis away from the housing, and an expansion rod extendible from the housing along the longitudinal axis. A driver assembly is fixed to the housing and adapted to translate the expansion rod along the longitudinal axis.

A ratcheted spinal device including a variable-length member including a ratchet mechanism that has an operative configuration that allows a change in length of the variable-length member in one direction and prevents a change in length of the variable-length member in an opposite direction, wherein the variable-length member includes polyaxial-joint attachment members for attachment to bone, which permit pivoting movement of the attachment members about more than one pivoting axis.

The present disclosure relates to a constant distraction force driven self-actuating growing rod system (100) for implantation on a deformed bony anatomy. The system (100) comprises at least one static rod component (10); at least one intermediate rod component (20); at least one growth rod component (30); at least one compression spring component (40) adapted to apply an active distraction force onto the system (100) of the present disclosure; at least one magnetic field-based spring actuation mechanism (50) and at least one dynamic sealing plug (60). During the natural growth of the deformed bony anatomy, the growth rod component (10) telescopes out of the intermediate rod component (20), creating a distraction force deficit in the system (100); the distraction force deficit being corrected by causing the compression spring component (40) to get compressed by means of the magnetic field-based spring actuation mechanism (50); thereby maintaining an active distraction force onto the system (100).

A system for moving a portion of a patient's body including a housing having a first cavity extending along a longitudinal axis, a first distraction rod having a proximal end and a distal end, the first distraction rod and the housing being telescopically displaceable with respect to each other along the longitudinal axis, the first distraction rod having a cavity extending along the longitudinal axis, a second distraction rod having a proximal end and a distal end and configured to be telescopically displaceable from within the second cavity along the longitudinal axis, and a drive system configured to move the first distraction rod in relation to the housing and to move the second distraction rod in relation to the first distraction rod.

A spinal correction apparatus comprises a body. A ratchet is disposed with the body. A longitudinal element is connected to the ratchet. A force is applied to at least a portion of the apparatus that causes dynamic incremental movement of the longitudinal element relative to the body in at least one direction. Methods of use are disclosed.

In one embodiment, a spinal tethering system includes multiple bone anchors each configured to be secured to a vertebra of the spine, a tether configured to connect and apply tension to the bone anchors for the purpose of modulating growth of the spine, and a clutch mechanism configured to selectively release the tether to enable adjustment of the tether and, therefore, adjustment of the tension that the tether applies to the bone anchors.