The invention relates to a surgical instrument comprising a bone screw having a screw head, and a shaft for rotating the bone screw in a bone, the shaft and/or head forming a single element with the bone screw and having a predetermined breaking point. A driving element is inserted into the bone screw by the shaft, said driving element screwing the screw further in or out once the shaft has broken off from the screw.

Stand alone fusion cage assemblies that can be secured to the adjacent vertebral bodies via an in-line approach that is substantially perpendicular to the anterior wall of the stand alone cage (or substantially parallel to the cage insertion direction).

A bone screw is provided including a tubular body and a head as separate parts. The tubular body has a first end, a second end, a tubular wall defining a cavity and a plurality of openings extending through the tubular wall into the cavity. The tubular body also includes a continuous exterior bone thread on an exterior tubular surface of the tubular wall. The continuous exterior bone thread extends for at least one full revolution about the tubular surface. The head defines an inner bore and includes an engagement structure to engage with a driver to advance the bone screw in the bone when a rotating force from the driver is applied to the engagement structure in a first direction, and a connection structure to connect to the tubular body at the first end. The head is connected to the tubular body by the connection structure in such a way that the head is locked against disconnection from the tubular body when a rotating force from a driver is applied to the engagement structure in a second direction opposite to the first direction.

The present disclosure relates to an interference screw for creating an interference fit between a bone tunnel and tissue. The screw includes a threaded body having a proximal end, distal end, and thread extending around the threaded body between the proximal and distal ends. A supporting spline extends along a cannulation through the threaded body. The supporting spline is engagable with a delivery device. The screw further includes at least one opening defined by a surface between threads of the threaded body. A ratio of open surface area to closed surface area defines the opening and is selected such that, when torsionally loaded, the screw does not exhibit plastic deformation when inserted into an undersized bone tunnel. The screw further includes a tapered tip extending from the distal end of the threaded body. The tapered tip has a thread extending at least partway around the tapered tip.

A repair system including at least one anchor, screw, or plate with a body and a suture capture element formed in the body for attaching at least one suture to the anchor, screw, or plate. The suture capture element being configured so as to permit the suture to be snared by the suture-capture element after the anchor, screw, or plate has been attached to bone.

Bone anchors and related systems and elements, such as means for engaging a ligament to a bone anchor for correction of spinal deformities. In some embodiments, the bone anchor may be configured for engaging vertebral bone and may comprise an exterior thread form and an interior thread form, which may be positioned within an interior chamber of the bone anchor that may open at the distal end of the bone anchor where an outer thread form may also terminate. The inner chamber may taper in an opposite direction relative to an outer surface of the bone anchor upon which the outer thread form is positioned.

A bone implant (1) for stabilizing fractured or non-fractured bones comprises an implant body (2), preferably a cylindrical body, extending along a longitudinal axis (3) from a front side (4) to an end side (5). The implant has an implant width (6) extending perpendicularly to the longitudinal axis (3), and a length of the implant body (2) along the longitudinal axis (3) is at least 5 times the width (6) of the implant. The implant body (2) has an outer surface, being at least divided into a first surface (7) and a second surface (8. The first surface (7) comprises an anchorage area (9) which extends at least partially over the outer surface, preferably maximum over half of the outer surface.

A surgical fastener for use in posterior surgeries that require fusion between the occiput and pelvis. Among other things, the surgical fastener includes a cutter for cutting bone or other tissue.

A bone anchor includes an anchor member including a first material, and having a tubular section extending along a longitudinal axis, a region configured to expand radially outwards from the longitudinal axis, and a bone engagement structure projecting from at least a portion of the expandable region of the tubular section, and a core member including a second material, and configured for insertion into and connection to the anchor member. When the core member is in the anchor member and is actuated relative to the anchor member, the tubular section is adjustable between a first position where the expandable region of the tubular member has a first length and a first maximum diameter, to a second position where the expandable region of the tubular member has a length shorter than the first length and a maximum diameter greater than the first maximum diameter.

A multiple drive interference screw device with a head having multiple insertion features. The screw component has a tubular body with a first end and a closed second end, and the head is positioned at the first end and configured to engage with a driver to advance the screw into the bone A penetrating tip is positioned at the second end. The head of the screw component has at least three insertion features, such as a hex shaped insertion feature around the major diameter of the head and a hexalobe shaped insertion feature within the hex shaped insertion feature, and a sprocket shaped insertion feature positioned exterior to the hex shaped insertion feature.