Spinal correction surgical techniques and methodologies for correction of scoliosis using non fusion anterior scoliosis correction, including soft tissue releases, unique correction techniques such as de-rotation, and unique single and dual anchor screw/cord applications.

Disclosed herein are distraction and compression devices configured for placement between a first section of a bone and a second section of the bone, which are scalable to small implant sizes. In various embodiments, the devices include a distraction shaft having an internal cavity disposed therein, the distraction shaft being configured for fixation to the first section of bone; and a housing configured for fixation to the second bone section, wherein the distraction shaft is configured to be axially movable relative to, and disposed partially within the housing. A driving element is disposed within the housing, which is configured to rotatably drive a gear assembly, and a lead screw assembly is disposed at least partly within the internal cavity of the distraction shaft, the lead screw assembly being configured to rotatably advance and/or retract a lead screw within the internal cavity, and to be rotatably driven by the cycloid gear assembly.

Systems, devices, and associated methods for correcting spinal column deformities that help minimize a number of attachment anchors utilized for correction, facilitate use of straight or contoured rods, and/or help promote a more natural, physiologic motion of the spinal column.

Devices and methods are provided for treatment of the cervical spine. The devices and methods allow for treatment to be delivered from a lateral or posterior-lateral location of a subject, proximate to the cervical region of the spine. One exemplary embodiment of a spinal implant includes an elongate cage member and a plate member appended to a proximal end of the cage member. The plate member can be oriented in a manner such that it is asymmetric with respect to a long axis of the cage member. In another exemplary embodiment, an implant includes a cage member having a distal end that has an asymmetrical, bulleted shape such that the distal end is biased towards a superior or cranial direction. In a third exemplary embodiment, an implant includes a spinal fixation element and at least two mounting eyelets formed thereon. Exemplary methods related to implanting spinal implants from a lateral or posterior-lateral location are also provided.

An implant system for correcting deformities is provided. The implant system includes A proximal extension having a hollow interior and a distal extension configured to be received within the hollow interior of the proximal extension. The implant system also includes a locking element configured to lock the distal extension from moving with respect to the proximal extension. The distal extension is configured with ratchet teeth on a top surface for interacting with a distractor instrument for contacting or distracting the distal extension with respect to the proximal extension. The proximal extension and distal extension are configured to receive clamping elements for coupling to the implant to anatomical regions of the body.

A spinal construct is provided including a first fastener, a second fastener and a connector. Each fastener includes a first end and a second end configured for penetrating tissue. The connector has two ends. Each end of the connector includes an expandable member. The first end of each fastener is engageable to an expandable member of the connector to fix the fastener to the connector. The first and second ends of the connector are connected by a bridge. The spinal construct also includes securing members for attaching the connector to the fasteners. A method for treating a spinal disorder with the spinal construct is also provided.

An exemplary system for correcting a spinal deformity includes a plurality of transverse rods, a longitudinal rod, and at least one node. The plurality of transverse rods each includes a first end for coupling with an extension member of a spinal fixation system and a second end. The longitudinal rod extends transverse to the transverse rods. The at least one node receives the second ends of first and second transverse rods and the longitudinal rod within a receiving portion and an adjustment member selectively secures the second ends.

A combined apparatus for compression and distraction of a first physical component having a first bone screw and a second physical component having a second bone screw, said apparatus comprising a connected rod fixedly connected to one of the first and second bone screw heads and slidably connected to the other of the first and second bone screw heads, a rod holder comprising a ramp, and A screw head extension comprising an protruding member and an adjusting means, such that when the protruding member is moved vertically, pressure between said protruding member and progressively wider portions of said ramp force an increase in distance between the rod holder and adjacent bone screw head, resulting in compression or distraction as desired of the physical components.

An implant system for correcting deformities is provided. The implant system includes A proximal extension having a hollow interior and a distal extension configured to be received within the hollow interior of the proximal extension. The implant system also includes a locking element configured to lock the distal extension from moving with respect to the proximal extension. The distal extension is configured with ratchet teeth on a top surface for interacting with a distractor instrument for contacting or distracting the distal extension with respect to the proximal extension. The proximal extension and distal extension are configured to receive clamping elements for coupling to the implant to anatomical regions of the body.

Systems, methods, and devices for determining a length of a connecting rod are described. In some aspects, a method includes obtaining at least one radiographic image representative of a first medical device inserted into a body of a patient, and determining a calibration factor of the at least one radiographic image. The method may further include receiving one or more rod length selection parameters, and determining, based on the at least one radiographic image, a first rod connection point and a second rod connection point. The method may further include determining, based on the first rod connection point, the second rod connection point, and the one or more rod selection parameters, a length of the connecting rod. The method may further include outputting the length of the rod to a display.