A medical device for treating hip joint osteoarthritis in a human patient by providing at least one artificial hip joint surface. The medical device comprises a prosthetic part or a bone plug adapted to be placed in a hole in the pelvic bone and a supporting member connected to said prosthetic part or bone plug, wherein the prosthetic part or the bone plug is adapted to be inserted into said hole from the abdominal side of the acetabulum and oriented, during the insertion, such that the concave interior surface is facing in the direction towards the caput femur. Wherein the medical device comprises an artificial caput femur surface or artificial acetabulum surface, and wherein a largest cross-sectional distance of said artificial caput femur or acetabulum surface is smaller than said hole, such that said artificial caput femur surface can pass through said hole.

Implants and methods for augmentation of the disc space between two vertebral bodies to treat disease or abnormal pathology conditions in spinal applications. The implant includes a chain of biocompatible material suitable for insertion into a disc space between two adjacent vertebral bodies in a patient's spinal column, wherein the spinal disc space has a transverse plane. The chain comprises a plurality of adjacent bodies having a height configured to reside within the disc space between two adjacent vertebral bodies and a length configured to reside in the disc space between two adjacent vertebral bodies when the chain is curved in an orientation substantially along the transverse plane of the spinal disc space.

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.

An adjustable orthopedic implant can include a neck assembly, a stem assembly, and a drive assembly having a first portion coupled to the neck assembly and a second portion coupled to the stem assembly. The drive assembly can include an actuator configured to rotate in response to the actuation signal, and a threaded rod coupled to the actuator and configured to rotate in response to rotation of the actuator. The threaded rod can engage a threaded receptacle of the stem assembly such that rotation of the threaded rod in a first direction urges the neck assembly and the stem assembly closer together, and rotation of the threaded rod in a second, opposite direction urges the neck assembly and the stem assembly further apart.

Prostheses, acetabular apparatuses, and methods of use are disclosed. In some embodiments, an acetabular apparatus includes an acetabular cup, a pre-assembled liner and flange construct, and a dual mobility bearing (e.g., a dual articulating femoral head component and insert). In one embodiment, the pre-assembled liner and flange construct may be coupled together by a band coupled to the flanges, the band being arranged and configured to be pressed onto an outer surface of a liner. The pre-assembled liner and flange construct being arranged and configured to accept the dual mobility bearing so that it is freely rotatable relative thereto during use.

The present disclosure relates to an implant component (10, 20) having at least one connecting portion (30, 60), the connecting portion being at least partly coated with a Zr coating and the coating having a thickness of 1-20 μm, preferably 1-6 μm. The present disclosure further relates to a modular endoprosthesis comprising an implant component, to the use of a Zr coating to prevent crevice corrosion and/or fretting corrosion, and to the use of an implant component in patients suffering from a metal allergy.

The present invention relates to an animal femoral implant and, more specifically, to an animal femoral implant, which may enable artificial hip joint replacement for animals, may enable the implant to be firmly fixed to the animal femur by spontaneous bone growth of the animal, thereby preventing complications such as aseptic dissociation and bone resorption around the cement, which may occur when using bone cement, and may cause a porous part, which has relatively low strength due to a plurality of pores formed therein, to be protected by a frame part, which has relatively high strength due to a solid face formed therein, thereby preventing damage to the porous part in which the edge thereof is broken or bent by friction with the bone or by an external force in the process of inserting the femur implant into the animal femur and eliminating a problem in that porous particles that may be generated when the porous part is damaged penetrate into blood vessels and the like to cause various inflammatory reactions.

The invention provides a femoral head centre of rotation locating device (10) comprising an adjustable frame (12) having a frame axis (X). The frame includes a central frame portion (14); a first jaw (16) that is linearly moveable relative to the central frame portion along the frame axis and having a first femoral head contacting surface (26); a second jaw (18) that is linearly moveable relative to the central frame portion along the frame axis and having a second femoral head contacting surface (28), and a gear wheel (32) mounted on the central frame portion. The gear wheel has a centric aperture (34) located substantially equidistant from the first and second femoral head contacting surfaces. The gear wheel is operably connected to each of the first and second moveable jaws by gear teeth (30) provided on a surface of each of the first and second moveable jaws. Linear movement of the first jaw in a first direction rotates the gear wheel to cause reciprocal linear movement of the second jaw to maintain the centric aperture at a position equidistant from the first and second femoral head contacting surfaces. This aligns the centric aperture with the native head centre of the femur as the first and second femoral head contacting surfaces come into contact with opposite surfaces of the femoral head.

An orthopedic system for delivery of a therapeutic agent to a bone includes an elongate stem adapted to be inserted into an intramedullary canal, an inlet configured to receive the therapeutic agent, and one or more outlets configured to deliver the therapeutic agent to the bone. The elongate stem may comprise one or more protrusions to engage the bone, and one or more channels extending longitudinally therein, fluidly coupled to the inlet. The therapeutic agent flows from the inlet through the one or more channels and exits into the intramedullary canal through the one or more outlets. The system may be configured to allow one or more dimensions of the system to be adjusted to accommodate the anatomy of a patient.

A system and method for improving upon an ability of a surgeon to repair traumatic bone injury using new materials, components, and structures. A structure may be used as an implant or a component of an external fixator for a fractured long bone with that structure having anisotropic and viscoelastic properties, such as through additive manufacturing techniques.