A knee prosthesis comprises a unicondylar knee prosthesis having a unicondylar insert platform and a tibial base attached to a bottom side of the unicondylar insert platform. The unicondylar insert platform has a uniform stiffness gradient (e.g., a density or porosity gradient), whereas the tibial base has a non-uniform stiffness gradient (e.g., a density or porosity gradient) when the tibial base is viewed from a cross-sectional coronal plan. For example, the tibial base may have an area of greatest stiffness or density centrally located relative to an inboard and outboard side of the tibial base. Alternatively, the area of greatest stiffness or density may be located toward the outboard side. Additionally, the tibial base may include density wells having increased density relative to the surrounding area of the tibial base.

Provided is a structure of a porous spinal implant including a cage body inserted between adjacent vertebral bodies and divided by an upper surface, a lower surface, a left surface, a right surface, a front surface, and a rear surface, a plurality of vertical pores formed on the upper surface and the lower surface of the cage body, and a plurality of horizontal structures stacked on the left surface and the right surface of the cage body, wherein the plurality of vertical pores and the plurality of horizontal structures are each formed in a pattern that repeats in up-down, left-right, and front-rear directions. The structure of a porous spinal implant is capable of reducing strength of a cage body close to that of a vertebral body.

Bone-contacting surfaces and free surfaces of orthopedic implants. The implants are additively manufactured, followed by mechanical, chemical, or mechanical and chemical erosion. At least some of the surfaces of the implants include an osteoinducting roughness that has micro-scale structures and nano-scale structures that facilitate and enhance osteoinduction and osteogenesis, as well as enhanced alkaline phosphatase, osterix, and osteocalcin expression levels along the pathway of mesenchymal stem cell differentiation to osteoblasts.

The present invention discloses a metal-ceramic composite joint prosthesis and applications and a manufacturing method thereof. The joint prosthesis comprises a metal body and a ceramic body, wherein the metal body is integrally formed and comprises a porous structure layer, a boundary layer and a root-like layer, the boundary layer is located between the porous structure layer and the root-like layer, the root-like layer comprises a plurality of root-like filament clusters connected to the boundary layer but not in contact with one another, each root-like filament cluster comprises a main root perpendicularly connected to the boundary layer and a plurality of fibrous roots connected to the lateral side of the main root, the fibrous roots extend obliquely towards the side away from the boundary layer, and the ceramic body covers the root-like filament clusters and is formed on the boundary layer. The joint prosthesis achieves the compositing of metal and ceramic, thereby achieving both a wear-resistant ceramic body required for a joint friction surface and a porous metal structure with a good bone ingrowth effect required for an osseointegration surface. The root-like filament clusters of the root-like layer are rooted in the ceramic body, to form a tight and stable connection between the ceramic body and the metal body, and the root-like clusters being not in contact with one another prevents the ceramic body from locally breaking or cracking.

Sacro-iliac joint stabilizing implants adapted for implanting across a SI joint from a dorsal approach. Methods of, and delivery tools adapted for implanting sacro-iliac joint stabilizing implants across a SI joint from a dorsal approach.

The present disclosure provides a bone-implantable device and methods of use. The bone-implantable device comprises a body having an exterior surface, wherein a portion of the exterior surface includes a cured osteostimulative material comprising MgO.

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.

A device configured for use as a medical implant is disclosed herein. The device includes an anchor body having a perimeter wall defining a rim, and a cavity dimensioned to receive an elastic articulating component. At least one lattice region is arranged at least along an inner surface of the perimeter wall adjacent to the rim. An elastic articulating component is configured to fill the cavity and attach to the at least one lattice region.

An additively manufactured in-process structure includes, a base, a first cantilever element extending from the base, and a first heat sink adjacent to the first cantilever element and configured for absorbing heat from the first cantilever element during an additive manufacturing process. A gap is formed between the first cantilever element and the first heat sink and the first heat sink is spaced from any rigid substrate underlying and supporting the first heat sink.

A temporomandibular joint replacement system includes a condylar component secured with a mandibular bone and a fossa component with a fossa backing secured with a zygomatic bone, the fossa having an open-ended concave fossa dome with a post-center peak to allow for mediolateral and anterior translation with a rounded, oblong condylar head of the condylar component. The bone-interfacing surfaces are anatomically-contoured to their respective bone surfaces and formed with materials and textures which promote osseointegration with the joint replacement.