Embodiments described include devices and methods for forming a porous polymer material. Devices disclosed and formed using the methods described a spacer for spinal fusion, craniomaxillofacial (CMF) structures, and other structures for tissue implants.

A method and system are provided for installing a spinal fusion cage. The spinal fusion cage includes an outer cage having a proximal outer cage endwall and a distal outer cage endwall. An inner cage has a proximal inner cage endwall and a distal inner cage endwall. The proximal and distal inner cage endwalls each are in slidable contact with a corresponding one of the proximal and distal outer cage endwalls. The inner and outer cages collectively define a fusion cage cavity space having a volume which varies responsive to relative sliding of the inner cage with respect to the outer cage. An actuation tool includes a shaft and an operative portion. The operative portion of the actuation tool has an asymmetrically tapered portion which includes a longitudinally aligned face extending substantially parallel to the longitudinal axis and an angled face extending at an acute angle to the longitudinal axis.

The present disclosure includes systems, methods, kits, and individual tools (e.g., trial sizers and delivery devices) for medical procedures involving a soft-tissue allograft for the correction of skeletal impairments (e.g., misalignments, arthritis, etc.).

The invention relates to an implant for the transforaminal intracorporeal fusion of lumbar vertebral column segments. At least some sections of the surface areas that are in direct contact with the spinal column are provided with an anti-dislocation mechanism (1) while an attachment part (4) for a positioning instrument (10) is provided in or on the implant and holes (6) or hollow spaces are disposed in the implant for filling purposes. According to one embodiment of the invention, the attachment part is configured as a revolute joint. In a further embodiment, the implant member has the shape of a sickle, the curvature of which is oriented ventrally and the interior of which is oriented dorsally. The attachment part is located at one end of the sickle while the opposite end of the sickle has a beak-type, tapering shape (5). At least one filling hole is provided between the sickle walls.

A method of resurfacing a facet joint with a facet implant system. The facet joint includes a superior facet and an inferior facet that are adjacent to each other and movable with respect to each other. A first facet implant component is provided that has a first visualization marker. The first visualization marker includes a first marker section and a second marker section. The first marker section is oriented at an angle with respect to the second marker section. The first facet implant component between the superior facet and the inferior facet. A location and an orientation of the first facet implant component are determined using an imaging technique that locates the first visualization marker.

A spinal implant includes a first member having a wall that defines an axial cavity. A second member extends between a first end and a second end and defines a longitudinal axis. The second member is configured for disposal with the axial cavity and translation relative to the first member. A third member has an outer surface engageable with tissue and an inner surface disposed to dynamically engage the first end in response to the engagement of the outer surface with the tissue. Systems and methods are disclosed.

The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.

Proposed are an apparatus and method for spinal surgery planning, the spinal surgery planning method including: acquiring a two-dimensional (2D) spinal image of a patient through a medical imaging apparatus; calculating a registration relationship between coordinates in an image space and coordinates in a surgical space by registering the image space for the spinal image and the surgical space where spinal surgery is performed on the patient; generating a virtual three-dimensional (3D) figure in the surgical space; projecting the 3D figure onto the spinal image based on the registration relationship; adjusting the 3D figure so that the 3D figure can correspond to a predetermined landmark on the spinal image; and setting an insertion position and insertion path of a spinal prosthesis based on the spinal image and the 3D figure.

An interbody implant includes an implant body extending between an anterior surface and a posterior surface. The implant body includes a first vertebral engaging surface and a second vertebral engaging surface. At least one of the vertebral engaging surfaces defines a cavity configured for disposal of bone growth detectable via medical imaging. Systems, spinal constructs, surgical instruments and methods are disclosed.

Methods and devices are disclosed for treating the vertebral column. An implant for treating the spine is provided comprising at least two articulations between the spacer and the bone facing surface of the fixation plate. Another implant for treating the spine is also provided, comprising two or more fixation plates attached to a spacer with two or more articulations, wherein the fixation plates are independently movable.