A spinal stabilization system and method are provided for treating a patient's spinal column, for maintaining preselected spacing and movement between adjacent vertebrae in a spinal column, and for providing overall stability thereto. The system includes an interlaminar member positioned in the space intermediate a first vertebra and the vertebrae positioned immediately below and adjacent to the first vertebra. The interlaminar member is operatively connected to an adjustable support structure and cooperates therewith to maintain the preselected spacing between adjacent vertebrae and to provide overall stability to the spinal column.

Patient-specific systems and methods are provided for assisting in medical procedures, and can include producing patient-specific devices from computer models of a patient's anatomy, including a first patient-specific device configured to identify and allow access to a resection area in an operation location for a medical procedure; a second patient-specific device configured to refine the procedure, following use of the first patient-specific device and in some embodiments, to identify and allow access to installation locations for an implant and/or surgical hardware; and/or a third patient specific device configured to assist in confirming placement of the implant and/or surgical hardware and refining the procedure, following use of the first and second patient-specific devices. Each of these devices may be developed from patient-specific computer model data via patient-specific image data and may enhance a variety of procedures.

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 spinal implant is disclosed for engagement to portions of a spinal segment after a laminectomy procedure. The spinal implant includes a first member and a second member in orthogonal relation relative to the first member such that the spinal implant generally defines a t-shape configuration. The spinal implant is formed using biocompatible materials to safely adapt to the surgical area. The spinal implant may include hooks or apertures for engaging with portions of bodily tissue. The spinal implant may be engaged to other spinal implants along the spine using one or more arms of an interconnecting arrangement.

Interspinous process spacing devices and associated methods are provided. In one embodiment, an interspinous process spacing device includes a first attachment side, a second attachment side, and a spacer. The first attachment side and the second attachment side each include a central portion, a first wing portion, and a second wing portion. The central portion includes an inner surface extending along at least a majority of an anterior-posterior height of the central portion, and the first wing portion includes an inner surface extending along at least a majority of an anterior-posterior height of the first wing portion. The inner surface of the first wing portion extends in a direction transverse to the inner surface of the central portion, and the anterior-posterior height of the first wing portion is less than the anterior-posterior height of the central portion.

A hook anchor for anchoring a fixation rod to a bone is disclosed. The hook anchor includes a hook body shaped in a curve of diminishing radius and a locking mechanism. The locking mechanism is to securely fix the hook anchor to the fixation rod. The curve of diminishing radius may be the shape of at least a portion of a Fibonacci curve. The bone can include at least one of a rib, a pelvis, and a vertebra. The hook body can be configured to engage with at least one of a spinous process a transverse process, and a pedicle of the vertebra.

Technologies are generally provided for devices, systems, and methods to provide spinal fixation, spinal stabilization, and/or spinal fusion. Example devices may include a first end and a second end with a middle portion extending between the first and second end. The first end may be configured to be in contact with a portion of a first or upper vertebra and the second end may be configured to be in contact with a portion of a second or lower vertebra in an adjacent vertebral pair. Portions of the vertebra which may be in contact with the device may include lamia, processes, vertebral bodies, and facet joints. The example devices may include bone engagement features, such as screws or similar fasteners, to enhance stabilization and fixation when in contact with the vertebrae. Additionally, the devices may include a bone integration feature to promote bone growth and to facilitate fusion between the vertebrae.

A patient-specific navigation guide for use in spinal surgery including a first and a second guide member, both integral with a supporting frame and extending along a respective longitudinal development axis from a proximal opening to a distal opening for guiding surgical instruments on a first vertebra of a patient. The guide also includes contact members designed to match with a corresponding plurality of contact areas on a first and on a second vertebra of the patient to define a single coupling configuration of the patient-specific navigation guide on the patient's vertebrae. The first and second guide members are substantially opposite with respect to a median plane orthogonal to a straight line joining the longitudinal axes of the first and second guide members. The navigation guide also comprises a single additional third guide member that is integral with the frame and is adapted to abut on a second vertebra.

Methods and apparatus provide for: (i) coupling a spinous process plate to one lateral side of a spinous process of a spine of a patient, the spinous process plate extending substantially parallel to a sagittal plane (anterior-posterior plane) through the spine of the patient, the spinous process plate including a first fixation element facilitating a connection of the spinous process plate to the one lateral side of the spinous process; (ii) coupling a laminar plate to a laminar on the one lateral side of the spinous process of the spine, the laminar plate extending transversely from the spinous process plate and transversely to both the sagittal plane and a coronal plane (lateral plane) through the spine of the patient, the laminar plate including a second fixation element facilitating a connection of the laminar plate to the laminar on the one lateral side of the spinous process; (iii) engaging a sub-laminar hook to the laminar on the one lateral side of the spinous process, the sub-laminar hook extending transversely from the laminar plate and substantially parallel to a transverse plane through the spine of the patient, the sub-laminar hook extending and hooking beneath the laminar on the one lateral side of the spinous process of the spine; and (iv) extending a rod toward a pedicle on the one lateral side of the spinous process of the spine of the patient, the rod having proximal and distal ends, the proximal end being connected to the laminar plate and the rod extending from the laminar plate toward the pedicle, where the rod prohibits movement of bone associated with a fracture in a pars interarticularis of a vertebral arch on the one lateral side of the spinous process of the spine.

A bone fastener assembly instrument that can assemble a two-component bone fastener during surgery is provided. The bone fastener may be of a type that comprises a threaded bolt and nut for securing an implantable device to bone, such as a spinous process. A method for using the bone fastener assembly instrument is also provided.