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.

A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and/or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

A minimally invasive spinal instrument and method for use of the same are disclosed. In some embodiments, a body includes an outer shaft and an inner shaft. A passageway accepts the inner shaft such that the outer shaft at least partially encloses the inner shaft. Each of the outer shaft and the inner shaft have spaced rings with locking grooves interleaved therewith. Each set of locking grooves is sized to accept a clamp such that the spaced rings mitigate longitudinal sliding of the clamp. A locking knob selectively secures the outer shaft and inner shaft thereto. A tip is removably secured to the inner shaft. In a single shaft configuration, in response to the locking knob being selectively disengaged from the outer shaft, the inner shaft and the locking knob are separated from the outer shaft such that the passageway is accessible to accept a metallic wire therethrough.

A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.

A multi-portal method for treating a subject's spine includes distracting adjacent vertebrae using a distraction instrument positioned at a first entrance along the subject to enlarge an intervertebral space between the adjacent vertebrae. An interbody fusion implant can be delivered into the enlarged intervertebral space. The interbody fusion implant can be positioned directly between vertebral bodies of the adjacent vertebrae while endoscopically viewing the interbody fusion implant using an endoscopic instrument. The patient's spine can be visualized using endoscopic techniques to view, for example, the spine, tissue, instruments and implants before, during, and after implantation, or the like. The visualization can help a physician throughout the surgical procedure to improve patient outcome.

Systems and methods are described for correcting sagittal imbalance in a spine including instruments for performing the controlled release of the anterior longitudinal ligament through a lateral access corridor and hyper-lordotic lateral implants.

Disclosed is a system for delivering a facet screw assembly to a facet joint. The system includes a facet screw assembly and a delivery device. The distal end of the delivery device includes a facet screw engagement feature, which is keyed to a corresponding delivery device engagement feature. In other embodiments, the system may include a facet screw assembly, a facet access guide, a washer sizer tool removably engaged with the facet access guide, a lateral mass decorticator guide slidably and removably engaged with the washer size tool, a washer implant delivery tool removably engaged with the facet access guide and detachably coupled to the facet screw assembly, and optionally an impact handle detachably coupled to the facet access guide, washer sizer tool, and washer implant delivery tool.

A lateral retractor system for forming a pathway to a patient’s intervertebral disc space includes a single dilator and a retractable dual-tapered-blade assembly. The dilator may feature a narrow rectangular body for insertion at an insertion orientation parallel to the fibers of the patient’s psoas muscle, at an approximate 45-degree angle to the patient’s spine. The retractable dual-tapered-blade assembly consists of only two blade subassemblies, each having a blade bordered by adjustable wings, along with built-in lighting and video capabilities. The dual-tapered-blade assembly may be passed over the single dilator at the insertion orientation and rotated approximately 45-50 degrees to a final rotated orientation parallel to the intervertebral disc space before the two blade subassemblies are retracted away from one another to create the surgical pathway, while simultaneously and continuously assessing for encroachment upon one or more nerve structures within 360-degrees of the instrument. Other embodiments are also disclosed.

Vertebral probes for fusionless spinal surgeries and related surgical methods. In some embodiments, the probe may comprise a shaft having one or more tapering portions. Some embodiments may further comprise one or more non-tapering portions. The probe may further comprise a distal tip extending from a shelf or ledge that may allow for penetration of the tip therethrough with a first force and be configured to inhibit further advancement of the probe by requiring a second force substantially greater than the first force to achieve further advancement.

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.