A vertebral column implant assembly for insertion between two vertebrae, the assembly comprising: a superior implant body for engagement with a superior vertebra; an inferior implant body for engagement with an inferior vertebra; a central implant body adapted to be positioned in between the superior implant body and the inferior implant body, the central implant body further comprising: a first fastening arrangement positioned on an upper face of the central implant body to engage and fasten the superior implant body; and a second fastening arrangement positioned on a lower face of the central implant body to engage and fasten the inferior implant body; wherein each of the central implant body, the superior implant body and the inferior implant body comprises internal walls defining respective passages, such that the first and second fastening arrangements are positioned along inner marginal portions of the superior and inferior implant bodies respectively and structured to engage the central body with the superior and inferior implant bodies respectively to interconnect each of the respective passages to form a continuous passage to allow graft material to be positioned therein.

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surf aces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

Spinal implant trials are provided having various configurations and sizes that aid the selection of spinal implants having similar configurations and sizes. A surgeon during surgery can insert various configurations and sizes of the spinal implant trials into a disc space between two adjacent vertebral bodies of a patient to enable the selection of a spinal implant configured and sized to fit the patient's disc space. Fluoroscopic images can be used in aiding the selection of an appropriately configured and sized spinal implant corresponding to one of the spinal implant trials. The spinal implant trials include features that reveal on the fluoroscopic images whether the spinal implant trials are properly oriented and positioned in the disc space. As such, the selection of the configuration and size of the spinal implants can be made after it is determined that the spinal implant trials are properly oriented and positioned within the disc space.

Disclosed is an assembly and method for implant installation between adjacent vertebral bodies of a patient. The implant has a support body and a rotatable insert therein and the support body is curved for installation between adjacent vertebral bodies transforaminally. An installation instrument is also disclosed for removable attachment to implant and engagement with the rotatable insert to selectively permit rotation between the insert and the support body. The installation instrument extends along a longitudinal tool axis and when the installation instrument is in a first position the insert is rotationally fixed with respect to the support body and when the installation instrument is in a second position the support body may rotate with respect to the insert.

The present invention provides a method for stabilizing a fractured bone. The method includes positioning an elongate rod in the medullary canal of the fractured bone and forming a passageway through the cortex of the bone. The passageway extends from the exterior surface of the bone to the medullary canal of the bone. The method also includes creating a bonding region on the elongate rod. The bonding region is generally aligned with the passageway of the cortex. Furthermore, the method includes positioning a fastener in the passageway of the cortex and on the bonding region of the elongate rod and thermally bonding the fastener to the bonding region of the elongate rod while the fastener is positioned in the passageway of the cortex.

A glenosphere includes a body and a flange. The body includes a first body surface and a spherical second body surface, and includes an engagement feature to engage with an attachment structure attachable to a bone. The flange extends radially outward from the body and includes a first flange surface contiguous with a first body surface and a second flange surface contiguous with the second body surface. The flange has a flange length extending from a first end and a second end such that an angle defined by a first line from a center of the body to the first end and a second line from the center of the body to the second end is less than 180 degrees.

The present invention provides a spinous process implant and associated methods. In one aspect of the invention, the implant includes a spacer that is connectable to two extensions. One of the two extensions is connectable to the spacer at a first end and coupled to the spacer by a rotational connection. The other of the two extensions is movably connectable to the second end of the spacer and translatable over the outer surface of the spacer from the second end.

A method of revising a patient having a fusion cage implanted within a spinal column, involving percutaneously delivering a first end of a tube to the spinal column, fluidly connecting the first end of the tube to the fusion cage, and delivering a bone growth agent into the fusion cage through the tube.

The embodiments provide a spinal implant that is configured for midline insertion into a patient's intervertebral disc space. The spinal implant may have a body and the body comprises one or more apertures. The apertures receive fixation elements, such as a screw and the like. The fixation element may comprise one or more anti-backout features, such as a split ring. In addition, at least some of the apertures are designed to permit a predetermined amount of nutation by a fixation element. The apertures that allow nutation enable the fixation element to toggle from one position to another, for example, during subsidence of the implant in situ. Some of the apertures may be configured to rigidly lock with the fixation elements. Moreover, the spinal implant may include features, such as one or more bores, that can accommodate imaging marks to help guide a surgeon.

A device adapted to be positioned between two bone regions, the device comprising a body having a stabilising arrangement configured such that bone growing from one bone region toward the other engages the stabilising arrangement of the device.