The present disclosure relates to a three-dimensionally (e.g., 3D) printed, surgically implantable tissue engineering scaffolds for promoting bone, vascular, and/or cartilage regeneration at osteochondral regions and a method for manufacturing the 3D printed surgically implantable tissue engineering scaffold. The 3D printed surgically implantable tissue engineering scaffold may be fabricated at least in part from a thermoplastic polyurethane (e.g., nTPU) composite via a rapid prototyping machine. In some cases, the three-dimensional shape of the fabricated tissue engineering scaffold may correspond to a three-dimensional shape of a tissue defect of a patient.

A bone implant includes at least one bone-engaging surface designed to mate with an implant-engaging surface of a bone. In the preferred embodiment, the bone-engaging surface of the implant includes a wave pattern comprising at least one peak extending in a proximal direction or at least one valley extending in a distal direction. The implant-engaging surface of the bone also includes a matching wave pattern having at least one peak and valley. Upon mating the engaging surfaces, a bone-implant interface may be created wherein the peaks and valleys of the wave patterns are aligned. As a result, there is good surface contact area at the bone-implant interface which helps prevent loosening or rotating of the implant.

An expansion apparatus is used in spinal surgery, and which opens the expandable cage located between the vertebrae during the operation in a preferred amount, and thus adjusts the distance between the vertebrae as desired.

A prosthesis for spinal surgery includes a spacer adapted to be secured into the bone and attached to one of a plurality of configuration plates. The configuration plates are interchangeable and each one is configured to utilize a different combination of bone screws, anchors or both. The prosthesis may further include a retaining mechanism to prevent bone screws and/or anchors from backing out.

Described herein is a bone implant including at least one bone-engaging surface designed to mate with an implant-engaging surface of a bone. In the preferred embodiment, the bone-engaging surface of the implant includes a wave pattern comprising at least one peak extending in a proximal direction or at least one valley extending in a distal direction. The implant-engaging surface of the bone also includes a matching wave pattern having at least one peak and valley. Upon mating the engaging surfaces, a bone-implant interface may be created wherein the peaks and valleys of the wave patterns are aligned. As a result, there is good surface contact area at the bone-implant interface which helps prevent loosening or rotating of the implant.

A prosthesis for spinal surgery includes a spacer adapted to be secured into the bone and attached to one of a plurality of configuration plates. The configuration plates are interchangeable and each one is configured to utilize a different combination of bone screws, anchors or both. The prosthesis may further include a retaining mechanism to prevent bone screws and/or anchors from backing out.

A medical implant extractor including a handle, a shank extending from the handle, and a laterally projecting tip at a distal end of the shank. The disclosure further provides a kit including the aforementioned medical implant extractor and a striking tool for striking the medical implant extractor.

The disclosure relates to a reconstruction prosthesis including a main section, at least one serpentine structure, and at least one mount section. The at least one serpentine structure is connected to one end of the main section. The at least one mount section is connected to the main section via the at least one serpentine structure. The at least one mount section is configured to be connected to osseous tissue. When the at least one serpentine structure is deformed by force, the relative position of the main section and the at least one mount section is changed.

A radial head prosthesis for implantation in a distal radius. The implant includes a head portion and a stem portion. The stem portion has a cylindrical shaft and tapered tip. The head portion includes a recess for engagement with the stem portion. The head portion includes a first bearing surface for articulation with a humerus, and a second bearing surface for articulation with an ulna. The second bearing surface includes at least one concave and one convex portion immediately adjacent one another.

The embodiments provide various interbody fusion spacers, or cages, for insertion between adjacent vertebrae. The cages may have integrated expansion and angular adjustment mechanisms that allow the cage to change its height and angle as needed, with little effort. The cages may have a first, insertion configuration characterized by a reduced size to facilitate insertion through a narrow access passage and into the intervertebral space. The cages may be inserted in a first, reduced size and then expanded to a second, larger size once implanted. In their second configuration, the cages are able to maintain the proper disc height and stabilize the spine by restoring sagittal balance and alignment. Additionally, the intervertebral cages are configured to be able to adjust the angle of lordosis, and can accommodate larger lordotic angles in their second, expanded configuration. Further, these cages may promote fusion to further enhance spine stability by immobilizing the adjacent vertebral bodies.