Described are systems, targets, and methods for registering a tool for use in optical tracking. A first target and a second target are attached to the tool, with the first target having a known spatial relationship to the tool or end effector of the tool. By determining a spatial feature of the first target and a pose of the second target, and using the known spatial relationship between the first target and the tool or end effector of the tool, a spatial relationship between the second target and the end effector can be determined. Subsequently the first target can be removed, and the end effector is trackable based on only tracking of the second target. In some implementations, the first target is removably couplable to the tool by the same interface by which the end effector is removably couplable to the tool.

A kit for installing a spine implant includes an installation tool and a spine implant. The spine implant includes a body having a cavity extending through the body, a channel extending a first length along the first lateral side, a bore in communication with the cavity, a superior blade guide, and an inferior blade guide. The body also includes a first blade situated on the superior blade guide and movable along the superior blade guide after implantation of the, and a second blade situated on the inferior blade movable along the inferior blade guide after implantation of the body. The installation tool includes a handle, a hollow shaft connected to the handle, a pusher rod configured to extend through the hollow shaft and extend the first and second blades, and a graft rod configured to extend through the hollow shaft and introduce graft material into the spine implant.

A bellows shaped spinal implant, comprising an upper plate, a lower plate and a bellows shaped shell extending between and joining the upper and lower plates. The bellows shaped shell is formed of titanium or an alloy comprising titanium and includes a wall extending therearound that defines a hollow interior. The wall has a thickness in the range of 0.5 mm to 1.0 mm to provide for radiographic imaging through the wall. The wall is angled or curved inwardly or outwardly between the upper and lower plates to provide stiffness mimicking the stiffness properties of a similarly sized polyetheretherketone (PEEK) implant. The upper and lower plates each comprise porous contact regions including a three-dimensional gyroid lattice structure defined by a plurality of struts and pores in communication with the hollow interior. The outer surfaces of at least a portion of the struts may comprise a laser ablated textured surface.

An interbody device may include a main body and an arm movably connected thereto. The device may have a first end, a second end opposite the first end in a direction of a longitudinal axis of the device, a first side, a second side opposite the first side in a direction of a first transverse axis of the device, a third side, and a fourth side opposite the third side in a direction of a second transverse axis of the device. An overall distance between the first side and the second side may increase along at least a majority of a length of the device in a direction from the first end toward the second end, and an overall distance between the third side and the fourth side may increase along at least a majority of the length in a direction from the second end toward the first end.

A spinal implant for implantation within a spinal facet joint, the implant comprising: a main body including: opposing top and bottom surfaces; opposing front and rear surfaces; and opposing side surfaces; at least one retaining feature associated with at least one surface of the main body to frictionally engage the implant within the spinal facet joint; and two secure ment apertures extending through the main body to fixedly secure the implant within the spinal facet joint.

A surgical instrument and method are provided for removal of a spinal implant from the intervertebral disc space. The instrument includes a carriage body for interfacing with the implant, a housing for interfacing with the vertebrae, and a handle portion having a first portion rotatably coupled with a proximal end of the housing and a second portion rotatably engageable with a proximal attachment portion of the carriage body. A central passage of the housing extends between the proximal end and a distal engagement surface of the housing. The central passage is dimensioned to mate with the carriage body. Rotation of the handle portion about an axis causes translational movement of the carriage body along the axis. A modular inserter/distractor apparatus and method and an anchor remover and method are also provided.

The present invention concerns a cage holder including an elongated body comprising a proximal end and a distal end, the elongated body extending from the proximal end to the distal end. The cage holder is characterized in that it further includes means for transferring energy centrally from the proximal end to the distal end through the elongated body.

Technologies for aligning an acetabular prosthetic component in a patient's surgically prepared acetabulum include a reference sensor module securable to the patient's bony anatomy, an inserter sensor module securable to an acetabular prosthetic component inserter, and a display module. Each sensor module generates sensor data indicative of the orientation of the sensor module and/or structures to which the sensor module is coupled. The display module receives the sensor data from the sensor modules, determines the orientation of the acetabular prosthetic component relative to the patient's bony anatomy, and displays indicia of the determined orientation on a display.

An implant having a unitary body includes an intramedullary portion and an extramedullary portion. The intramedullary portion is sized and structured to be received within an intramedullary canal of a first bone and defines a longitudinal axis. The extramedullary portion includes a surface defining an axis that is disposed at an angle with respect to the longitudinal axis. An aperture defined along the extramedullary portion is sized and configured to receive a fastener therein for coupling the extramedullary portion of the implant to a second bone.

An implant extractor assembly that includes a handle, and a mount connectable to the handle. The mount includes a main body, a quick connect about a proximal end of the main body, and an L-shaped connector about a distal end of the main body. The L-shaped connector includes a through hole having a longitudinal axis transverse to a longitudinal axis of the main body.