An assembly for attachment to a first implant component has a size and shape of a second implant component to be implanted together with the first implant component. The assembly includes a first body and a second body removably connected to the first body. In a temporary configuration, the first and second bodies are prevented from separating while the first and second bodies permit relative movement therebetween. A modular kit includes a plurality of the first bodies each having a different size or shape, and a plurality of the second bodies each having a different size or shape. A method of assembling the assembly includes removably connecting the first body to the second body, such that the first and second bodies are prevented from separating while permitting relative movement therebetween, and positioning the assembly on the first implant component.

An assembly for attachment to a first implant component has a size and shape of a second implant component to be implanted together with the first implant component. The assembly includes a first body including a plug having a projection, and a second body including a recess having an internal surface defining at least one indentation. In a temporary configuration, when the plug is disposed within the recess and the projection is disposed at least partially within one of the at least one indentations, the first and second bodies are removably connected such that the first and second bodies are prevented from separating. A method of assembling the assembly includes removably connecting the plug of the first body into the recess of the second body by locating the projection within an indentation, such that the bodies are prevented from separating, and positioning the assembly on the first implant component.

An assembly for attachment to a first implant component has a size and shape of a second implant component to be implanted together with the first implant component. The assembly includes a first body defining a protrusion and a second body including a recess into which the protrusion is insertable. When the protrusion is seated within the recess, the first and second bodies are removably connected such that the first and second bodies are prevented from separating. A modular kit includes a plurality of the first bodies each having a different size or shape, and a plurality of the second bodies each having a different size or shape. A method of assembling the assembly includes removably connecting the protrusion of the first body into the recess of the second body, such that the first and second bodies are prevented from separating, and positioning the assembly on the first implant component.

A stem (3) includes: a body section (10) which is inserted into a narrowing hole (Ha) formed in a femur (H) and osseointegrated; a neck section (20) which is joined to a tip of the body section (10) and protrudes from the narrowing hole (Ha) to transmit a load from an acetabular side to the body section (10); and a leg section (25) which is joined to a distal end of the body section (10) to hold a posture of the body section (10), wherein the neck section (20) and the leg section (25) are made of a biocompatible resin, and the body section (10) is made of a biocompatible metal, a biocompatible ceramic, or a biocompatible resin.

An orthopedic prosthesis includes a head which internally accommodates the major motion of a patient, e.g., during walking, thereby reducing wear against a cup or liner. A neck may be utilized which rotates within the distal member about an axis aligned with the major motion of the patient. The orthopedic prosthesis may also include a sacrificial anode, a seal made of natural fibers, and utilize lubricant made of honey.

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.

An apparatus, system, and method may be used to replace a natural or artificial articular surface of a joint, and to repair a bone that is associated with the joint. In some embodiments, the apparatus, system, and method may include a joint replacement prosthesis with a prosthetic articular surface, a support structure securable to the bone, and a first attachment interface. The system may also include a bone plate with a bone engagement surface securable to the bone on either side of a fracture formed in the bone, or a damaged area of the bone. The bone plate may include a second attachment interface that is attachable to the first attachment interface of the joint replacement prosthesis in order to couple the bone plate to the joint replacement prosthesis.

A bent trial femoral neck (400) and method for visually assessing the orientation of an acetabular cup implanted in a pelvis of a patient are described. The bent trial femoral neck comprises a body (402) extending along a femoral neck axis, an attachment formation (408, 410) extending from the body for releasably attaching the trial femoral neck to a femoral part received with a femur of the patient and a taper (404). The taper extends along a taper axis and the taper axis is tilted anteriorly relative to the femoral neck axis by an angle configured to position a trial femoral head having an indicium on an outer surface so that the indicium is parallel to a plane of a rim of the acetabular cup, or a rim of a liner within the acetabular cup, when the acetabular cup is oriented in the pelvis of the patient with a target orientation and the hip joint is in a predetermined position.

A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

An orthopedic prosthesis includes a proximal member which internally accommodates the major motion of a patient, e.g., during walking, thereby reducing wear against a cup or liner. A distal member may be utilized which rotates within a proximal member about an axis aligned with the major motion of the patient. The orthopedic prosthesis may also include a head and neck, the neck being rotatably mounted within the head, the head being rotatably mounted within the acetabulum region of a patient.