There is provided a method of manufacture of a component from multiple materials, and a consolidated component formed thereby. The method includes the steps of forming a component body comprising a first material, the component body defining a cavity, filling at least a portion of the cavity with a second material, and performing hot isostatic pressing of the component body and second material to form a consolidated component. The process offers a reduced-complexity, reduced-part-count method of manufacture for components formed of multiple materials.

Improved hip arthroplasty trial devices and hip arthroplasty trial systems are described. A hip arthroplasty trial device has a head member having a central axis and defining an inner chamber, a head member opening providing access to the inner chamber, and a cavity extending inward from the outer surface of the head member. A rotatable member is disposed in the inner chamber and along an axis between the central axis and one side of the head member. The cavity extends along an axis between the central axis and another, opposite side of the head member. A spacer is disposed within the head member opening and is moveable between a spacer first position and a spacer second position. Rotational movement of the rotatable member moves the spacer from the spacer first position to the spacer second position.

The present disclosure provides a hipbone prosthesis, comprising: a prosthesis main body (10), the prosthesis main body (10) being of an arched structure, the prosthesis main body including a first end portion (11) and a second end portion, and the first end portion (11) being contacted and matched with a sacrum (1); and an acetabular cup (20) and a connecting device (30), the acetabular cup (20) being connected with the second end portion in a position adjustable manner via the connecting device (30). According to the technical solutions of the present disclosure, the problems of unreliable supporting and easy fatigue break of a screw-rod system in the related technology are effectively solved.

According to various embodiments, a trial system (100) and instruments can be used to assist in confirming that a planned procedure is achieved. In various embodiments, the trial or provisional portions can include markings (110) on a trial or provisional portion to compare to one or more implanted members to ensure an planned position is achieved.

The invention relates to a method of installing a medical device for reducing the risk of permanent damage to a hip joint of a human patient, said method comprising the steps of: exposing the hip joint through a surgical or arthroscopic procedure, fixating a first piece of said medical device to the femoral bone, fixating a second piece of said medical device to the pelvic bone, placing said first piece in connection with said second piece, holding said first piece to said second piece using a releasing member, and releasing said first piece from said second piece when a pre-determined strain is placed on said releasing member.

Various aspects of methods, systems, and use cases may be used to prevent dislocation of a joint replacement implant by limiting movement of the joint replacement implant to safe zones of movement. In some examples, the joint replacement implant includes a ball, an intermediate shell adapted to receive the ball and engage with a shell mobility structure protruding from the ball, and an outer shell adapted to receive the intermediate shell and provide fixation of the implant within a portion of a joint of a patient. For example, the interaction between the ball, the intermediate shell, and the outer shell prevent dislocation of the ball, and therefore dislocation of the joint replacement implant.

A CAS system and method for guiding an operator in inserting a femoral implant in a femur as a function of a limb length and orientation of the femoral implant with respect to the femur, comprising a reference tool for the femur, a registration tool, a bone altering tool and a sensing apparatus. A controller is connected to the sensing apparatus to: i) register a frame of reference of the femur by calculating surface information provided by the registration tool as a function of the position and orientation of the registration tool provided by the sensing apparatus, and/or retrieving in a database a model of the femur; ii) calculate a desired implant position with respect to the frame of reference as a function of the limb length; and iii) calculate a current implant position and orientation in relation to the desired implant position with respect to alterations being performed in the femur with the bone altering tool, as a function of the position and orientation of the bone altering tool provided by the sensing apparatus and of a digital model of a femoral implant provided by the database. The database is connected to the controller for the controller to store and retrieve information relating to an operation of the controller. The computer-assisted system may be used to guide an operator in inserting a pelvic implant in an acetabulum as a function of an orientation of the pelvic implant with respect to the pelvis.

Femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants, e.g., hip replacement implants, and methods of using femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants are provided. Prosthetic femoral heads, mobile inserts, and acetabular components are provided that can alleviate soft tissue impingement, reduce implant wear, and/or reduce frictional torque. Modular junctions are provided that can minimize the incidence of loosening and micromotion that can occur at modular junctions of orthopedic implants.

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of the cavity in the end of the bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the channel by an adhesive. The stem of the prosthesis beyond the channel may be cemented or uncemented. The support structure may have an approximately funnel shape. The support structure may be a hollow porous cylindrical sleeve. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining a channel between the pair of components. The support structure may comprise a plurality of pedestals secured to the inner surface of the cavity of the bone.

An orthopedic hip prosthesis system is disclosed. The orthopedic hip prosthesis system comprises a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein, a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component, and a shell positioned over the tapered trunnion of the femoral stem component. The shell includes a frame extending over the tapered trunnion, and a protective coating applied to the frame and the tapered trunnion. A method of performing an orthopedic surgery is also disclosed.