The present application generally relates to orthopedic systems, and in particular, to systems including independent plates and spacers. A plating system can include a spacer and a plate that is independent from the spacer. A number of locking mechanisms can be provided to secure the plate to the spacer. In some cases, the spacer includes a pair of notches that extend on an outer surface of the spacer. The plate can include a pair of lateral extensions that can engage the notches to secure the plate to the spacer. In other cases, the spacer includes an opening including a pair of inlets. The plate can include an enclosed posterior extension that can be received in the pair of inlets to secure the plate to the spacer.

A flexible plastic, resin or polymer material forming a trial plate for use is surgery of bones including spine and extremities. The trial plate having at least one radioopaque region and which may have one radiolucent region. In some instances a main body includes one or more arms formed of subparts. Between the main body and subparts and between the subparts are rangible regions such a ribs or unbroken edges surrounding windows configured as predetermined break points to disassociate portions of an arm from the whole.

The present invention relates to a shoulder prosthesis comprising:a metaglene element (2) or baseplate;a pin (3) projecting from said metaglene element (2);a through-hole (11) in the centre of said metaglene element (2);at least one through-hole (5) formed in a periphery of the metaglene element (2) with respect to said central through-hole (11);a glenosphere element (12) opposite said pin (3) with respect to said metaglene element (2);a central compression screw (9) housed in said through-hole (11) in the centre of said metaglene element (2) and having a head abutting onto the bottom of said hole (11); andwherein the central through-hole (11) has an opening (11A) that is threaded in a stretch to receive the end of a safety screw (18) passing through the glenosphere element (12);a connector element (13) between the metaglene element (2) and the glenosphere element (12), the metaglene element (2) providing a seat (14) for housing the connector element (13) projecting around the central through-hole (11).

A semi-synthetic hybrid material having a pH from 7 to 7.4 includes an inorganic fraction and a cross-linked organic fraction. The method for producing this material, and osteosynthesis devices or implants made of semi-synthetic hybrid material are also described.

In some embodiments, a spinal implant (10, 110, 210, 310, 400) is provided and includes a body portion defining a longitudinal axis. The body portion includes a distal end portion, a proximal end portion, opposed side surfaces that extend between the distal and proximal end portions, and top and bottom surfaces configured and adapted to engage vertebral bodies. The top and bottom surfaces have a surface roughness between 3-4 m. A cavity extends through the top and bottom surfaces defining a surface area that is at least 25% of a surface area of the top surface or the bottom surface. First orifices (24, 124, 224, 324, 426a) are defined through the top surface and second orifices (34, 134, 234, 334, 426b) are defined through the bottom surface. The second orifices are connected to the first orifices by a plurality of channels.

An implant is insertable in the joint space to separate bones of the joint. The implant has two endplates each configured to engage a separate articulating bone of the joint, and a threaded member positioned between the two endplates and configured to increase the space between the two endplates when the threaded member is rotated. A rotatable gear is engaged with the threaded member, and is engageable with a rotating gear of a connected implantation tool, so that rotation of the gear on the tool causes rotation of the threaded member and expansion of the implant to separate the bones. Connector portions on the tool and the implant may be rotated together to securely engage the implant and the tool so that the gears of the tool and the implant can be rotated using an actuator outside of the body, when the implant is inside the body.

An expandable interbody device for implantation within an intervertebral space is provided, together with methods and tools for use therewith. The interbody devices of the present invention include upper and lower bearing members configured to expand via an expansion mechanism configured to allow the insertion of osteoconductive materials and other structures into the interior of the interbody device before and after implantation, and before and after expansion of the interbody device. The insertion tool is configured expand the interbody device and to allow insertion of materials into the interbody device through a protected pathway.

The invention relates to a ceramic surface arthroplasty system, which consists of a convex, hemispherical, metallic implant (1) and a hollow hemispherical metal implant (3). The implants are coated with porcelain or zirconium oxide layer on their friction surfaces to avoid the creation of metallic microparticles. The convex implant (1) has a navel (4) on the thread (6) of which a bone-piercing pre-tensioning needle (7) is screwed and is tightened with a washer (9) at the area of the major trochanter or bulge. Further, it has protruding ribs (5) immersed on the surface of the head.

The present teachings provide one or more surgical implements for repairing damaged tissue, such as in the case of a spinal fixation procedure. A cross connector system for use during a spinal fixation procedure is provided. The system includes at least one bridge defining a coupling bore and having a pair of downwardly extending arms for coupling to a first fastener. The system includes a contoured bar having a first end offset from a second end, and a bore having a central axis. The system includes an expansion ring received within the bore, and a locking device received through the expansion ring and the coupling bore. The locking device is operable in a first state in which the contoured bar is movable about the central axis of the bore and in a second state in which the contoured bar fixed relative to the central axis of the bore.

A method of implanting an intervertebral spacer may include positioning the intervertebral spacer within an intervertebral space defined by adjacent vertebral bodies. The intervertebral spacer may include a plurality of bores, and each of the plurality of bores may be configured to receive either a linear fastening element or a curvilinear fastening element. The method also may include selecting a first fastening element from a group including linear fastening elements and curvilinear fastening elements, and inserting the first fastening element into a first bore of the plurality of bores such that the first fastening element is inserted into one of the adjacent vertebral bodies to secure the intervertebral spacer within the intervertebral space.