Porous regions are formed using selected additive manufacturing techniques. The porous regions can assist in fibro-inductive regions and/or osteo-inductive regions. A prosthetic member can be formed completely with the additive manufacturing technique and/or the additive manufacturing techniques can be used to form an augment portion that is added to the prosthetic member formed separately.

Porous regions are formed using selected additive manufacturing techniques. The porous regions can assist in fibro-inductive regions and/or osteo-inductive regions. A prosthetic member can be formed completely with the additive manufacturing technique and/or the additive manufacturing techniques can be used to form an augment portion that is added to the prosthetic member formed separately.

A method includes generating a surgical plan for installation of a structure at a bone and controlling a controllable guide structure to guide a cutting tool to sculpt the bone and the structure based on the surgical plan. Sculpting the bone provides the bone with a bone mating surface and sculpting the structure provides the structure with a structure mating surface. The method also includes installing the structure on the bone by engaging the structure mating surface of the structure with the bone mating surface of the bone.

Systems, devices, and methods are provided for orthopedic implants. The implants may include a base member, such as an acetabular shell or an augment, that is configured to couple with an augment, flange cup, mounting member, or any other suitable orthopedic attachment. An implant may include a base member that has at least two projections with a gap between the projections. The gap between the projections allows the implant to fee implanted around another implanted component, such as around a bone screw of an acetabular shell. The implant may include a fixation element, such as a screw or a cement trough, on one or more projections to couple the implant to an implanted acetabular shell. The implant may also include timing marks to facilitate alignment with corresponding marks on another implanted component.

Disclosed herein are systems and methods for performing total hip arthroplasty with patient-specific guides. Pre-operative images of a pelvic region of a patient are taken in order to predefine the structure of the guides and corresponding implants. From the obtained image data an insertional vector for implanting an acetabular implant or component into an acetabulum of the patient is determined, wherein the insertional vector is coaxial with a polar axis of the acetabular component. Also from the obtained image data, a superior surface of the guides and implants can be shaped to match the acetabulum of the patient. A nub portion extending outwardly from the superior surface of the guides and implants is shaped to substantially match the shape of a fovea of the acetabulum. A guide portion of the guides forming a slot has a longitudinal axis coaxial with the determined insertional vector of a corresponding acetabular component.

An acetabular prosthesis for use in a hip arthroplasty surgical procedure includes an acetabular cup cage assembly including an outer cup cage and an inner cup cage. The outer cup cage includes a hemispherical cup and a mounting flange. Similarly, the inner cup cage also includes a hemispherical cup and a corresponding mounting flange. The hemispherical cup of the inner cup cage is sized to be received into the hemispherical cup of the outer cup cage, and the two cup cages are rotatable relative to each other to position the mounting flanges into a desired position on a hip bone of a patient.

A robotic system for preparing a bone to repair a bone fracture, includes a controllable guide structure configured to guide preparation of at least one bone piece during execution of a surgical plan and a control system configured to define the surgical plan. Defining the surgical plan includes determining a desired relationship between at least a first bone piece and a second bone piece that are separated by the bone fracture and planning preparation of the first bone piece to include a prepared anatomical structure configured to align the first bone piece with the second bone piece such that when aligned, the first bone piece and the second bone piece will achieve the desired relationship. The control system is further configured to control the controllable guide structure according to the surgical plan.

A system includes a constrained acetabular insert, a dual mobility liner, and a femoral head. The constrained acetabular insert has its perimeter extending beyond hemisphere and the dual mobility liner has its perimeter extending beyond hemisphere and configured to tilt and rotate within the constrained acetabular insert. The femoral head is configured to tilt and rotate within the dual mobility liner. The constrained acetabular insert may include a plurality of tabs and the dual mobility liner may include screw threads for receiving the plurality of tabs.

In one embodiment, the present disclosure relates to an acetabular cup for implantation into a prepared acetabulum. The acetabular cup includes an inner surface, an outer surface, and an end face that separates the inner surface and the outer surface. The end face is opposite a polar region of the acetabular cup and circumscribes an open end of the acetabular cup. A plurality of protrusions project outwardly from the outer surface at predefined locations. The acetabular cup is operatively engaged to the prepared acetabulum in a planned orientation when the plurality of protrusions are received in corresponding predefined recesses in the prepared acetabulum.

A robotic system for preparing a bone to receive a prosthetic device. The robotic system includes a controllable guide structure configured to guide cutting of the bone into a shape for receiving the prosthetic device, and a computer readable medium for storing data representative of the prosthetic device. The prosthetic device includes a body portion having an implantation surface configured to face the bone upon implantation and at least one feature that provides a constraint structure that will constrain the prosthetic device in the bone. The robotic system includes a control system for controlling the guide structure, and is configured to define at least one bone-cutting pattern for (i) removing a first portion of bone in a first area sufficient to seat the body portion and (ii) at least one of removing and maintaining a second portion of bone in a second area configured to interact with the constraint structure.