An interbody fusion cage having upper and lower canals for receiving the heads of bone screws that have been pre-installed in opposing vertebral body endplates. The proximal wall of the cage preferably has a vertical slot that communicates with each canal and is adapted to allow access by a screwdriver and tightening of the screws.

A long-pitch, helical anchor includes splines radially extending and helically progressing circumferentially around and along the arcuate length of a curved center line (central curve). The center line may progress along the curved length of the anchor with all splines meeting near the center line. In other embodiments, the center line passes along the center of a lumen or channel from which the splines extend radially along the length. A solid point acts as a cutting edge on a distal end of the anchor. All the splines converge to the center line. Installation may be with or without a stabilizing frame, such as may be used to fill gaps and promote bone growth between joined members. The anchors may be used directly to connect and provide compression between two bones or bone structures.

A method of treating a spine includes implanting a spinal implant within a patient. The spinal implant includes a first member having a first wall defining an axial passageway and a first opening, the first opening being in communication with the axial passageway. A second member includes a second wall defining an axial channel having the first member disposed therein, the second wall defining a second opening in communication with the axial channel. Bone graft is injected through the first opening and into the axial passageway and through the second opening and into the axial channel after the spinal implant is implanted within the patient.

An expandable vertebral body device, system, instrument, and methods of assembly and using the device, system, and instrument are disclosed. The vertebral body device includes a body with a first end and a second end, a first rotating member rotatably coupled to the first end, a second rotating member rotatably coupled to the second end, a first extension member moveably coupled to the first end, and a second extension member moveably coupled to the second end. The expandable cage system comprises a vertebral body device and an insertion instrument. Methods for assembling and using the vertebral body device and instrument are also disclosed.

An implant for therapeutically separating bones of a joint has two endplates each having an opening through the endplate, and at least one ramped surface on a side opposite a bone engaging side. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. An actuator screw is rotatably connected to the frame. A carriage forms an open area aligned with the openings in the endplates. The openings in the endplates pass through the carriage to form an unimpeded passage from bone to bone of the joint. The carriage has ramps which mate with the ramped surfaces of the endplates, wherein when the carriage is moved by rotation of the actuator screw, the endplates move closer or farther apart.

A bone fastener includes a receiver defining an implant cavity and having an inner surface defining a slot. A band is disposable within the slot. A spacer disposable within the slot. A crown is rotatable relative to the receiver to translate the spacer relative to the inner surface such that the spacer orients the band in a capture orientation with the shaft. A screw shaft connectable with the receiver by the band and configured to penetrate tissue. Implants, systems, instruments and methods are disclosed.

A surgical instrument comprises a member defining a longitudinal axis and being connectable with a spinal implant. A handle is connected with the member. An image guide is connected with the member for orientation relative to a sensor to communicate a signal representative of a position of the spinal implant. The image guide is rotatable about the axis relative to the member and is disposable in at least one fixed position with the member. Systems, implants, spinal constructs and methods are disclosed.

An osteotomy implant includes a first surface extending generally in a first plane and a second surface extending generally in a second plane, oblique to the first plane. The first surface has a perimeter having a first linear edge, a first curve edge connected to the first linear edge, a second linear edge connected to the first curved edge, and a second curved edge connected to the second liner edge.

A prosthetic implant for engagement between first and second vertebrae. The implant includes a first plate configured for attachment to the first vertebrae and defining a first interbody connection member and a second plate configured for attachment to the second vertebrae and defining a second interbody connection member. An interbody component includes a body with a first end defining a first plate connection member configured for connection to the first interbody connection member and a second end defining a second plate connection member configured for connection to the second interbody connection member. A method of inserting the implant is also provided.

An implant for restoring height of a vertebral body. The implant includes upper and lower plates configured to be moved away from one another in the craniocaudal direction for the implant to be deployed. Supports are coupled to the upper plate and a distal end portion, and arranged in a crisscross configuration in the proximal-to-distal direction in each of an insertion configuration and a deployed configuration. The crisscross configuration facilitates increased expansion of the implant. The supports may be laterally spaced from one another to define a void space for receiving retaining element, and inner and outer arcuate surfaces may provide a generally cylindrical profile to the implant. One of the supports may be a support fork arranged in a V-shaped configuration. A length of the supports may be approximately 50-90% of a length of the upper and lower plates. The implant may be formed through additive manufacturing.