The present disclosure relates to an anti-rotation locking system for an expandable implant. The anti-rotation locking system may include a screw comprising a screw head comprising a plurality of notches. The anti-rotation locking system further comprises a housing and a locking member comprising a ring, a partial ring, and a strut coupling the ring to the partial ring.

A disc replacement device including a first body member with a convex articulation surface and a second body member with a concave articulation surface is disclosed. When operably positioned, the convex articulation surface engages the concave articulation surface to provide for movement therebetween. The disc replacement device also includes a first opening in the first body member and a second opening in the second body member, wherein the openings are angled and extends from the front aspects of the body members through the external surfaces. The disc replacement device further includes at least two bone fasteners for insertion into the first and second openings to secure the disc replacement device to a first and second vertebra. An interbody motion device and fusion implant, as well as a surgical method for implantation are also disclosed.

The present disclosure describes an intervertebral disk replacement system. The system can include a tissue-engineered intervertebral disc that is combined with a bioresorbable stabilization system for structural guidance. The system can prevent or reduce intervertebral disk implant displacement and can increase the stiffness when compared to the implantation of the intervertebral disk implant without the stabilization system.

An implant-trialing instrument for objectively determining a recommended implant size based at least in part on results of inserting a pressure sensitive trial implant into the intervertebral space. The trial implant instrument can include a handle coupled to a pressure sensitive trial. The handle can include an elongate shaft. The pressure sensitive trial implant can be disposed on a distal end of the elongate shaft and include a superior end plate surface configured to engage a first end plate of a first vertebral body and an inferior end plate configured to engage a second end plate of a second vertebral body. The pressure sensitive trial implant also includes a pressure sensitive film disposed on at least one of the superior end plate and the inferior end plate.

An implant for repairing a joint between a first bone and a second bone includes a first section constructed of a substantially rigid material and a graft constructed of soft tissue having a first end and a second end. The first section has a first end surface configured for positioning against the first bone. The graft is configured for stabilizing the first section relative to the first bone. A first fastener is configured for mounting to the graft and the first section to anchor the graft to the first section. A second fastener is configured for mounting to the graft and the first bone to anchor the graft to the first bone.

An expandable implant for bone restoration. The implant includes a first end element and a second end element. A plate is expandable in a first direction, and a blade expandable in a second direction. A first interconnecting element extends between the plate and at least one of the first and second end elements. A second interconnecting element extends between the blade and at least one of the first and second end elements. When the implant is in a collapsed position, a length of the blade is substantially parallel to the longitudinal axis, and when the blade is in an expanded position, the length of the blade is non-parallel to the longitudinal axis. The blade may include a length extending from a base to a tip, and the tip of the blade is further from the longitudinal axis than the plate when the implant is in the expanded position.

Systems and methods for robotically distracting a disc space are provided for implantation of an intervertebral prosthetic disc. The system includes a 3D modeling system for creating a 3D model of first and second vertebra adjacent the disc space and identifying positions of the first and second vertebrae and generating and storing position data for the positions of the first and second vertebrae. A robotic distractor determines a size of an intervertebral disc prosthesis to be implanted between the first and second vertebrae and precisely opens the disc space just large enough to receive a selected intervertebral disc. A computing system stores and processes the 3D model and the positions of the first and second vertebrae before and after distraction.

Systems and methods are provided for robotically assisted disc prosthesis selection and implantation. The system includes a 3D modeling system for creating a 3D model of first and second vertebra adjacent the intended surgical site and identifying and storing data for the positions of the first and second vertebrae. A computing system for stores and processes the 3D model and the position data. A robot connected to the computing system attaches to a plurality of instruments including sizing templates, trials, cutters or placement instruments for intervertebral disc prostheses. An interface on the computing system allows the surgeon to sequentially deliver the plurality of instruments with the robot to a registration position to improve the speed and accuracy of the surgical procedure.

An implant is disclosed. The implant has a first endplate, a second endplate, a base disposed between the first endplate and the second endplate, a plurality of adjustment arms operably connecting the base with the first endplate and the second endplate, and a plurality of pins disposed on at least one of the first endplate and the second endplate. The plurality of pins have different lengths. The plurality of adjustment arms are rotatably connected to a plurality of hubs that are axially slidable on at least some of the plurality of pins.

Improved fixation or stabilization of implants is achieved via one or more deployable spikes or anchors. The deployable spikes or anchors may be present in the implant in a nested, collapsed, or retracted position while the implant is inserted into the human body, and may then be deployed (e.g., into adjacent bone) after the implant is in place, thereby fixing the implant's location against unwanted movement. Such fixation or stabilization of the implant may reduce patients' pain, may improve overall short-term and long-term stability of the implant, and may improve osteo-integration into the implant.