A spacer device for the two-step treatment of prosthesis infections, made from biologically compatible and porous material designed to allow the possibility of adding pharmaceutical products, active and/or therapeutic ingredients, includes a first portion designed to be fixed to a corresponding bone bed remaining from a previous implant, and a second portion designed to be inserted in a corresponding articular area of the patient, the first portion and the second portion being attached by adjustable connecting means.

Systems and methods for distracting an intervertebral disc space are provided. The systems use an expandable trial with telescopic stabilizers. The systems and methods of distracting an intervertebral space are provided in a manner that addresses the problem of subsidence. The method includes inserting the trial into the intervertebral space in a collapsed state and, once inserted, the trial is then used for distracting the intervertebral space using an expansion that includes a first stage and a second stage. The first stage includes expanding the trial laterally toward the peripheral zones of the top vertebral plate and the bottom vertebral plate, and the second stage includes expanding the trial vertically to distract the intervertebral space.

Vertebral cage assembly techniques are disclosed. In some embodiments a vertebral cage assembly may include a front wall that includes a first opening, a top wall that includes at least one top growth opening, and a bottom wall that includes at least one bottom growth opening. The vertebral cage assembly may be expandable in a lateral direction.

Example spinal implants and related apparatus and methods are disclosed. An example spinal implant includes an outer corpus and an inner corpus axially displaceably coupled to the outer corpus. A first lever accommodation is provided on the outer corpus and includes an elongated aperture. A first set of teeth are formed on a first side of the first lever accommodation. A second lever accommodation is provided on the inner corpus and includes an elongated aperture. A second set of teeth are formed on a second side of the second lever accommodation. The first and second lever accommodations are aligned. The example spinal implant includes a first guide on the inner corpus and a second guide on the outer corpus. The first and second guides allow for axial displacement of the inner corpus relative to the outer corpus and prevent rotation of the inner corpus relative to the outer corpus.

Accordingly, a broad object of the invention can be to provide an inventive implant to facilitate stabilization while allowing an amount of motion of a sacroiliac joint. Embodiments of the sacroiliac joint implant can provide an elongate body, which can further include at least one fixation member, or a pair of fixation members which extend a distance outward from the longitudinal axis of the implant body adapted for non-transverse placement between the articular surfaces of the sacroiliac joint, and as to certain embodiments can further provide a third fixation member and additionally a fourth fixation member each adapted to extend a distance outward from the elongate body into the bone of the sacrum or the ilium.

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.

Vertebral body replacement apparatuses, systems, and methods are provided. In various examples, an implantable device is configured to be inserted between a first vertebral body and a second vertebral body. The implantable device includes a first endplate configured to contact a superior endplate of the first vertebral body. A central member is pivotably coupled to the first endplate. A second endplate is configured to contact an inferior endplate of the second vertebral body. The implantable device includes a first insertion configuration and a second load-bearing configuration. The first insertion configuration includes the central member at a first angular position with respect to the first endplate. The second load-bearing configuration includes the central member at a second angular position with respect to the first endplate and the second endplate in a load-bearing position.

The invention relates to a device for producing a spacer having a stem mold (1) which has an inner space (2), wherein the inner space (2) is accessible via a proximal opening (3) and wherein the stem mold (1) has a proximal wall (4) which peripherally delimits the proximal opening (3) of the stem mold (1), a head mold (5) which has in the interior thereof a hollow space (6), wherein the hollow space (6) has a spherical surface-shaped inner surface (7) and is accessible via a distal opening (8), wherein the head mold (5) has a distal wall (9) which peripherally delimits the distal opening (8) of the head mold (5), a metal core (10) which has a stem part (12), a head part (14) and a flange (16), wherein the flange (16) projects out from the metal core (10), is arranged between the stem part (12) and the head part (14) and has a proximal surface (18) and a distal surface (20), wherein the stem mold (1) and the stem part (12) are shaped such that the stem part (12) is arranged in the inner space (2), when the proximal wall (4) is resting against the distal surface (20), and wherein the head mold (5) and the head part (14) are shaped such that the head part (14) is arranged in the hollow space (6), when the distal wall (9) is resting against the proximal surface (18).

The invention also relates to a set with such a device and to a method for producing spacers with such a device.

A corpectomy implant comprises a height/length-adjustable (expandable) cage and plate. The plate is mounted to the cage once height of the cage has been set. The cage has a first component and a second component that is movable with respect to the first component in order to increase height of the cage. The first and second components have cooperating structure that provides discreet cage height increments. The first component has a superior end configured to grip a superior vertebral body, while the second component has an inferior end configured to grip an inferior vertebral body, the superior end attached to the superior end of the plate, and the inferior end attached to the inferior end of the plate. The plate has holes for anterior fixation of the plate to superior and inferior vertebral bodies. Plates of incremental sizes accommodate differing heights of the cage.

A spacer for insertion between two vertebrae includes a variable axial length and comprises a first member having a hollow interior and a tubular wall and a second member having a hollow interior and a tubular wall the second member being slidable within the first member in an axial direction for adjusting an overall length. At least the first member or the second member comprises an access opening in its wall, the opening having a size which is adapted for inserting bone grafts through the opening into the interior. The spacer further comprises a length adjustment structure being engageable with an expansion tool for telescoping the second member relative to the first member and a locking structure for fixing the axial length. The access opening, the length adjustment structure and the locking structure are arranged so as to be accessible from the same side of the spacer. The spacer allows in situ filling of bone grafts into its interior and an improved handling.