Disclosed are surgical implants for providing therapy to a treatment site, tool sets and methods for percutaneously accessing and deploying the implants within the spines. The treatment site may be a vertebral body, disc, and/or motion segments in the lumbar and sacral regions of the spine.

An inserter instrument for inserting an intervertebral fusion cage having curved sidewalls, comprising: a) a threaded securement rod that mates with the cage via screw threads; b) a cannulated cage holder to receive the rod and hold the cage in position as the sheath is retracted; and c) a bulleted cannulated sheath,
wherein the sheath is curved and comprises a superelastic shape memory material having a curved configuration and a straight configuration.

An adjustable spinal implant includes a lower body, an upper body, a locking pawl, and a locking key. The upper body and the lower body are pivotable relative to one another between a collapsed position and an expanded position. The upper body includes a locking flange that extends towards the lower body. The locking pawl is coupled to the lower body and is moveable between a locked position such that the upper and lower bodies are fixed relative to the one another and an unlocked position such that the upper and lower bodies are moveable relative to one another. The locking key is moveable between a locked state such that the locking pawl is fixed in the locked position and an unlocked state wherein the locking pawl is moveable between the locked position and the unlocked position.

A unique, universal Zero-Profile Expandable Intervertebral Spacer (ZP-EIS) device for fusion and distraction throughout the entire spine is provided which can be inserted via anterior, anterolateral, lateral, far lateral or posterior surgical approaches dependent on the need and preference. Multiple ZP-EIS embodiments each with unique mechanisms of calibrated expansion are provided. Two of these embodiments incorporate bi-directional fixating transvertebral (BDFT) screws and five other embodiments do not incorporate BDFT screws. A tool for implantation into the intervertebral device and calibrated device expansion is also disclosed.

This invention relates to an intervertebral fusion cage for insertion between vertebrae. The cage has a body defining a first, anterior portion, a second, posterior portion and a central portion extending between the anterior and posterior portions. The central portion may define a first surface which is, in use, a top surface and a second surface which is, in use, a bottom surface. The top and bottom surfaces may carry gripping formation for gripping end plates of the vertebrae. The gripping formations on the top and bottom surfaces preferably face substantially opposite directions such that the gripping formations on the top surface obstruct movement in first direction while the gripping formations on the bottom surface obstruct movement in a second direction, which is substantially opposite the first direction.

An orthopedic device for implanting between adjacent vertebrae comprising: an arcuate balloon and a hardenable material within said balloon. In some embodiments, the balloon has a footprint that substantially corresponds to a perimeter of a vertebral endplate. An inflatable device is inserted through a cannula into an intervertebral space and oriented so that, upon expansion, a natural angle between vertebrae will be at least partially restored. At least one component selected from the group consisting of a load-bearing component and an osteobiologic component is directed into the inflatable device through a fluid communication means.

The invention provides a method of making a biological disc graft. In one embodiment, the biological disc graft is useful for treating back or neck pain. In one embodiment, the biological disc graft is useful for treating any joint pain. The invention also provides a method of implanting said biological disc graft in a way that is minimally invasive and less dangerous.

An artificial disc replacement device is disclosed. The device includes an upper endplate and a lower endplate, as well as a core assembly disposed between the endplates. The core assembly includes a core member with a curved engaging surface and a matrix member. The matrix member is more compressible than the core member. The curved engaging surface of the core member engages a recess in the upper endplate so that the upper endplate can translate along the curved engaging surface. The curved engaging surface has a greater curvature at its posterior end than at its anterior end to facilitate different ranges of motion during extension and flexion.

A method for instant lumbar spine fusion between two vertebrae in a patient includes establishing under X-ray fluoroscopy the location of the transpedicular notch of the next lower vertebra in caudal direction, making a percutaneous incision to the transpedicular notch, inserting a cannulated guide, drilling a transpedicular approach from the pedicle of the lower vertebra to the anterior part of the vertebral body of the vertebrae above the disc to be treated, inserting a working cannula through the previously drilled approach reaching the intervertebral disk, cleaning and scrapping the intervertebral disk space, inserting transpedicularly at least one intervertebral stabilizing screw, and acting on both intervertebral screws with screwdrivers in order to distract or contract both screws allowing to adjust or correct the intervertebral distance of the disk. The method can be performed on an outpatient basis.

Intervertebral spacer assemblies, systems, and methods thereof. A method of insertion includes inserting an intervertebral spacer and plate together using an insertion tool and, upon removal of the insertion tool, the intervertebral spacer and plate are no longer considered connected/coupled and act as separate components.