Intervertebral implants, assemblies, and methods thereof. An intervertebral implant includes opposing chamfered edges to reduce a diagonal distance between the edges. The reduced diagonal distance minimizes distraction of an intervertebral disc space during insertion of the implant. A tool for insertion and rotation of the implant is also provided.

A method and apparatus are provided for making a temporary hip joint prosthesis. The method includes horizontally positioning each half of a two-part mold having a respective impression of a front side and a backside of a hip joint prosthesis. The method includes level filling the selected impressions with a bone cement mixture. The method includes rotating one half of the two-part mold to align the front side and back side of the hip joint prosthesis. The method includes maintaining the two halves of the two-part mold in contact as portions of the bone cement mixture in each half adhere together and cures. The method includes removing a hip joint prosthesis from the two-part mold.

An orthopaedic implant comprising: a body portion for replacing a missing joint or bone, or for supporting a joint or bone within a patient's body; a slot antenna for effecting wireless communication between the implant and an external device, wherein the slot antenna comprises a first surface in which is arranged a slot for receiving and/or transmitting wireless communication signals; wherein the slot antenna is comprised within the body portion, such that the slot is exposed to the environment outside of the implant.

A system and method for improving mechanical assemblies, such as prosthetic implants, intended to be installed in living tissue such as bone. Force-imparting devices are adapted and may include angularity, which may be introduced with specialized additive manufacturing, which may impart congruent cross-sections while providing variable stiffness. In some cases, the variable stiffness may be “stretchy” in a longitudinal direction and “rigid” in a radial directional which may provide an assembly bias. Additive manufacturing may allow the material of a prosthesis to be varied (e.g., density/porosity) to create variable stiffness over a length.

Intervertebral spacer assemblies, systems, and methods thereof. A method of insertion includes inserting an intervertebral spacer and plate together using an insertion tool and, upon removal of the insertion tool, the intervertebral spacer and plate are no longer considered connected/coupled and act as separate components.

An interbody implant includes an implant body extending between an anterior surface and a posterior surface. The implant body includes a first vertebral engaging surface and a second vertebral engaging surface. At least one of the vertebral engaging surfaces defines a cavity configured for disposal of bone growth detectable via medical imaging. Systems, spinal constructs, surgical instruments and methods are disclosed.

Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

An intervertebral implant assembly includes and inserter tool and an implant having a U-shaped body shaped and dimensioned to be placed between two adjacent vertebras. The U-shaped body comprises a rounded front end, an open back end, first and second elongated components extending from the rounded front end, forming the U-shaped body and ending at the open back end and at least one rigid strut extending from and connecting opposite inner side surfaces of the first and second elongated components. A first through-opening is formed in the space between the front end, the rigid strut and the opposite inner side surfaces of the front portions of the first and second elongated components and a second through-opening is formed in the space between the open back end, the rigid strut and the opposite inner side surfaces of the back portions of the first and second elongated components. The inserter tool comprises a shaft, a middle sleeve and an outer sleeve that work together to attach and lock to the implant.

An implant material may comprise a hole in at least one direction, and a member constituting the hole may comprise grooves. The member constituting the hole may be composed of a pillar and/or a plate. The grooves may be provided in the pillars and/or the plates. Further, a method of manufacturing the implant material may include manufacturing the implant material using a 3D modeling method.

The strength of bone implant attached to a bone is improved by using hybrid inserts which have stems and wings having bone ingrowth surface features and caps having outer surfaces of cured polymethyl methacrylate (PMMA). The stems and wings of the hybrid inserts are inserted into living bone and the bone implant is attached to the hybrid inserts with PMMA cement. Over time, the bone grows into the bone ingrowth surface features. The bone ingrowth strengthens the bonding of the hybrid inserts and the bone implant with the bone over time. The hybrid inserts increase the shear, tensile and torque strength of the bone implants. Bone inserts that do not have ingrowth surface features loosen over time.