The invention relates to an endoprosthesis shaft system for elongate bones, comprising an anchoring part (10) and a shaft (1), which is formed from module elements that can be coupled by means of a plug-in connection (45), wherein a mutual rotation of the elements along the shaft (1) is adjustable and is blocked by means of an anti-rotation mechanism. In order to adjust the rotation, a rotation piece (5) is provided as a further module element, which has a self-contained rotation adjustment device (6) and a clamping device (7) as a mechanism for blocking the rotation. The rotation piece (5) comprises two end faces for the plug-in connection (45) and a sleeve (77). The invention provides, with the rotation piece, a particular module element for the shaft, which as a structural unit allows both an adjustment of the rotation and a blocking against undesired rotation in a self-contained unit.

The proximally fitting femoral component with adjunctive fixation screws replaces a natural femoral head and proximal femur of a patient during a partial or total hip replacement. The femoral component includes an intramedullary stem having a proximal portion and a distal portion, a neck extending from the proximal portion, and a ball removably attached to a tip end of the neck, the ball forming a ball and socket joint with the acetabular cup of a hip prosthesis. Fixation screws may be installed in the proximal portion of the stem for added rotational and axial stability when necessary. An alignment device is removably attachable to the femoral component for aligning screw holes in cortical bone of the femur with holes or bores in the proximal portion of the stem. The fixation screws may extend in an anterior posterior or medial-lateral plane.

A device for reinforcing a femoral neck bone, the femoral neck bone including a cortical bone region and a cancellous bone region, the device including a support structure having an outer surface and including a portion having one or more bores, the one or more bores adapted to allow filler material to be released therefrom to enter directly into the cancellous bone.

This disclosure relates to orthopaedic implant systems and methods for restoring functionality to a bone and/or joint. The implant systems disclosed herein may include one or more components that may be configurable to establish a distance or span between two points of the respective implant system, such as an articular surface and an end of the implant system. A method of installing an orthopaedic implant system is also disclosed.

An implantable prosthesis including a stem and a stem head. The stem extends along a longitudinal axis from a proximal end portion to a distal end portion of the stem. The stem head is coupled to the proximal end portion of the stem. The stem head is configured to be coupled to a joint component. The stem head includes a side surface and a side surface cleat. The side surface cleat defines a first side surface groove and a second side surface groove. The side surface cleat extends between the first side surface and the second side surface.

A femoral orthopaedic prosthesis includes a metallic core extending from a proximal end to a distal tip. The metallic core includes a neck that is positioned at the proximal end and is configured to receive a prosthetic femoral ball. An elongated stem extends distally from the neck to the distal tip. The stem includes a proximal section extending distally from the neck, and a distal section that extends proximally from the distal tip. The elongated stem also includes a pair of spaced-apart beams that connect the proximal section to the distal section. An aperture is defined in the stem between the pair of spaced apart beams.

A method of manufacturing a femoral stem for a hip implant includes forming a femoral neck extending from a proximal end of the femoral stem towards a distal end of the femoral stem, forming an upper section connected to and extending from the femoral neck towards the distal end of the femoral stem, and forming a lower section connected to and extending from the upper section to the distal end of the femoral stem. Further, a method for designing a femoral stem for a hip implant includes generating a customized femoral stem model to match an information of a patient, generating at least one proximal-distal solid rib in the upper section, calculating density and stress distributions for an open lattice and for a closed lattice, and selecting a unit cell type and a pore size for the open lattice and the closed lattice to match a density and/or a stiffness of the patient's femur.

A hip stem prosthesis is provided for treating a deficient hip joint.

A spacer mold and method for producing a hip spacer, the spacer mold comprises a base element (1), in which a hollow mold is provided as negative image of one side of a femoral stem of the spacer to be generated, whereby a recess connected to the hollow mold is arranged on the proximal end of the hollow mold in the base element. The spacer mold further comprises a semi-spherical insert (2) comprising a femoral head mold as negative image of one side of a femoral head of the spacer to be generated, whereby the semi-spherical insert (2) is to be arranged in the recess in the base element (1). Further, the spacer mold comprises an adapter insert (3) that is designed as a hollow body that is open on two sides and that is or can be arranged in the recess of the base element (1) between the semi-spherical insert (2) and the hollow mold such that the recess exerts a pressure onto the adapter insert (3) and the semi-spherical insert (2). Moreover, the spacer mold comprises a punch (4) that comprises a punch hollow mold in the form of the negative image of the remaining femoral stem and that is arranged on or can be pressed onto the top side of the base element (1).

A femoral orthopaedic prosthesis includes a metallic core extending from a proximal end to a distal tip. The metallic core includes a neck that is positioned at the proximal end and is configured to receive a prosthetic femoral ball. An elongated stem extends distally from the neck to the distal tip. The stem includes a proximal section extending distally from the neck, and a distal section that extends proximally from the distal tip. The elongated stem also includes a pair of spaced-apart beams that connect the proximal section to the distal section. An aperture is defined in the stem between the pair of spaced apart beams.