A method for fixating a dysfunctional sacroiliac joint for SI joint fusion including implanting a joint implant at the sacroiliac joint. The joint implant may include a body extending a length between a proximal end and a distal end, an exterior surface, an interior surface opposite the exterior surface and defining an internal volume therein, a wall thickness extending between the exterior surface and the interior surface, a proximal opening extending into the internal volume, and a first plurality of voids along the length and extending through the wall thickness from the exterior surface to the interior surface. The first plurality of voids may be arranged along the length in a repeating pattern of a group of voids, wherein each void of the first plurality of voids is generally polygonal in shape.

A method for fixating a dysfunctional sacroiliac joint including implanting a joint implant at the sacroiliac joint. The joint implant may include: a length extending between a proximal end and a distal end; an exterior surface extending the length; an interior surface opposite the exterior surface and extending the length, the interior surface defining an internal volume therein; a wall thickness defined between the external surface and the interior surface; a proximal opening extending into the internal volume; a first wall section comprising a first plurality of struts arranged along the length and defining a first plurality of openings extending through the wall thickness; and a second wall section including a second plurality of struts arranged along the length and defining a second plurality of opening extending through the wall thickness. Each opening of the first and second plurality of openings may be generally polygonal in shape.

An intersomatic device (10), in particular for intersomatic vertebral stabilization, comprises at least two bodies (20, 30) that are reciprocally slidable in one another and cooperate so as to grow in volume in the intersomatic space until they cover an upper area of the receiving vertebral plates. An adjusting member (40) interacts with said bodies (20, 30) to define a first compact condition in which the device (10) and a second extended configuration, i.e. open and greater in volume, wherein the teeth of the first element (20) are moved and interfere minimally with those of the second element (30).

The present invention relates to an intervertebral fusion device (10) comprising a superior component (12), an inferior component (14) and a core component (16). The superior component (12) and the inferior component (14) are receivable in an intervertebral space between first and second vertebrae with the core component (16) insertable between the superior and inferior components to determine a separation between the superior and inferior components. A bone graft conveying aperture is defined in at least one of a superior component top surface (18) of the superior component and an inferior component bottom surface (20) of the inferior component. The core component defines a bone graft material holding space which is enclosed except at at least one of a core component top surface and core component bottom surface of the core component and a bone graft material delivery opening. The bone graft material delivery opening extends from outside the core component side to the bone graft material holding space. The bone graft material delivery opening is closed by a closure component.

The present invention relates to an intervertebral fusion device (10) comprising a superior component (20), an inferior component (40) receivable in an intervertebral space between first and second vertebrae, with the core component (80) insertable between the superior and inferior components to determine a separation between the superior and inferior components. The superior, inferior components and core components comprise respective formations and profiles. The formations (54, 68) present a barrier to separation of the core from one of the inferior and superior components during insertion of the core component. The profiles guide the core component during insertion of the core component while presenting no barrier to separation from each other during its insertion. The components comprise further formations (39, 76) which present a barrier to separation of the components from each other once the core has been fully inserted between the inferior and superior components.

Instruments, kits, and methods are disclosed for installing an implant spacer through an incision and down a surgical corridor. The instruments also serve to align a drill guide and align and insert a spacer stabilizer for stabilization of adjacent bone portions. The instrument comprises an elongated guide bar body, an inserter face at a distal end of said guide bar body for abutting an instrument attachment portion of a spacer, a connection tip portion for securing a spacer against an inserter face, and a guide portion of said elongated guide bar body for aligning instruments with said spacer and for introducing a stabilizer to secure the spacer in a predetermined position between the bone portions. Included is a retractable graft block for securing graft material within an aperture of said spacer during insertion of the spacer.

According to one example, a tibial prosthesis that can include a tibial bearing component, tibial baseplate, an insert and a fastener. The tibial bearing component can have medial and lateral proximal articular surfaces and an opposing distal surface. The tibial bearing component can define at least one recess therein with the recess having an opening at a periphery of the tibial bearing component. The tibial baseplate can be coupled to the tibial bearing component on the proximal surface thereof and having a distal surface configured to be disposed on a resected proximal surface of a tibia. The insert can be configured to be disposed within the recess and can engage the tibial baseplate and the tibial bearing component. The fastener can be insertable into the tibial bearing component and can be configured to retain the insert to the tibial baseplate.

A method of fusing a sacroiliac joint including delivering a screw across the sacroiliac joint and into the sacrum and the ilium, the screw including a body having helical spiral threads and spiral flutes extending into the body of the screw.

A method of fusing a sacroiliac joint including delivering a joint fixation screw into engagement with the sacroiliac joint, the screw having either: 1) a body including helical spiral threads, an anti-migration surface feature including at least one ridge extending distally from the proximal end at least partially the length, and a plurality of openings extending into the body; or 2) a body including a hollow interior, helical spiral threads and a plurality of openings extending into the hollow interior, wherein the helical spiral threads have a thread cross-section including: a height extending between a connection point with the body and a radial termination, a first thickness at the radial termination extending between opposite thread walls, and a second thickness located between the connection point and the radial termination extending between opposite thread walls, the first thickness being substantially greater the second thickness.

A system for fixating a dysfunctional sacroiliac joint for SI joint fusion, the system including a sacroiliac joint implant and a delivery tool configured for approaching a sacroiliac joint. The system may include an implant having a porous 3D matrix structure and may be manufactured by laser or electron beam additive manufacturing. The delivery tool may include a radiolucent material. The SI fusion system may further include custom sacroiliac joint implants, anchors, alignment tools or targeting arms manufactured for a particular patient. Pre-surgical imaging studies, including 3D rendering, and their interpretation may assist in planning desired trajectories, anchor dimensions and implant dimensions and may provide details specific to the manufacture of particular sacroiliac joint tools or implants and their implantation into the sacroiliac joint. The system may be configured for use with surgical robots and may include an integrated nerve monitoring and stimulation system.