Devices, systems and methods for use in spinal surgeries. The system may include a fastener system comprising a fastener, a staple, and a locking cap. A cord may extend along the spine and through at least one fastener system. An instrument may be provided for tensioning the cord. The system may, for example, apply fixation on the convexity of the scoliotic vertebrae to limit growth on the convex side and allow unilateral growth on the concave side.

The present invention generally relates to methods and device for treatment of spinal deformity, wherein at least one tether is utilized to maintain the distance between the spine and the an ilium to (1) prevent increase in abnormal spinal curvature, (2) slow progression of abnormal curvature, and/or (3) impose at least one corrective displacement and/or rotation.

A two-piece suspension pedicle anchor and its system and component-set is disclosed. The two-piece suspension pedicle anchor comprises a proximal piece and a distal piece that can rotate relatively. An external thread is arranged on the outer surface of the proximal piece, and a transverse through hole for an artificial ligament to pass through is arranged at the distal piece. As the two-piece suspension pedicle anchor is rotated and gradually locked into the bone, only the proximal piece is rotated, and the distal piece with the artificial ligament is pushed down but not rotated; in addition, the artificial ligament will be brought into the bone along with the distal piece and sandwiched between the outer surface of the proximal piece and the bone, that is, the artificial ligament will be sandwiched and fixed between the anchor-bone interface without wrapping around the outer surface of the proximal piece.

A surgical instrument comprises a first member including a lateral projection having a locking surface that defines an elongated cavity. The locking surface is engageable with a longitudinal member to fix the longitudinal member with the first member. A second member includes at least one mating element being engageable with a spinal construct. The first member is axially translatable relative to the second member in a first direction to tension the longitudinal member and in a second direction to release tension from the longitudinal member. Systems and methods are disclosed.

A pivotal bone anchor assembly includes a shank with a head, an anchor portion, and a neck extending between the head and the anchor portion, and a receiver with upright arms defining a channel for receiving a rod and a central bore extending downward to a lower portion of the receiver. The assembly also includes a retaining structure rotatably coupled with the receiver with an internal seating structure pivotally supporting the head while providing for independent rotation of the shank prior to locking the assembly with the rod and a closure. The retaining structure includes an external surface and a slot extending between the seating structure and the external surface with a concave cut-out configured to closely receive the neck so as to provide for increased articulation between the shank and the receiver along the slot, and with the shank and the retaining structure being rotatable together around a centerline axis to align the increased articulation in any radial direction around the circumference of the receiver.

A spinal treatment system includes a constraint device having an upper tether portion, a lower tether portion and a compliance member coupled therebetween. The upper tether portion is coupled with a superior spinous process of a spinal segment in a patient and the lower tether portion is coupled with an inferior spinous process or sacrum of the spinal segment. The length or tension in the constraint device is adjustable so that the construct of the tether portions and the compliance member provides a force resistant to flexion of the spinal segment. The system also includes a first prosthesis coupled with the spinal segment, wherein the constraint device modulates loads borne by the prosthesis or by tissue adjacent thereto.

A spinal implant for limiting flexion of the spine includes a tether structure for encircling adjacent spinal processes. Usually, a pair of compliance members will be provided as part of the tether structure for elastically limiting flexion while permitting an extension. A cross-member is provided between the compliance member or other portions of the tether structure to stabilize the tether structure and prevent misalignment after implantation.

Systems, methods, and devices for securing a spinal rod are provided. A clamp assembly comprises a tulip comprising an opening comprising an inner surface, wherein the inner surface is threaded; and a threaded locking cap disposed in the opening, wherein threads of the locking cap and the inner surface include various geometries.

A surgical kit includes a shield for covering a portion of the spine of a subject. The shield can include an attachment portion adapted to engage a bone fixation assembly which is adapted to be fixed on multiple vertebra bones of the subject. The bone fixation assembly can include a vertebra joining member secured between two bone anchors. Each bone anchor can include a fastener portion adapted to be implanted into a vertebra bone and a head coupling portion adapted to secure the vertebra joining member. The shield can be coupled to the bone fixation assembly via separate coupling elements, such as a clip or an adjustable link secured between two vertebra joining members of the bone fixation assembly. Alternatively, the shield can include an integral attachment portion configured to engage the bone fixation assembly directly.

An adjustable spinous process implant configured with one or more flexible members that extend from the implant and are further attachable to anchors implanted in adjacent vertebrae. The adjustable spinous process implant comprises a spacer that is shaped to fit between two adjacent spinal processes. The flexible members extend from one or more points on the adjustable spinous process implant and attach the anchors to provide tension and stability to the overall implant construct. The anchors are configured with a tensioning mechanism that enables the flexible members to be tensioned within the anchor.