An elbow prosthesis can include a humeral component having a yoke, an ulnar component having a head, a humeral bearing positionable in a base of the humeral component, an ulnar bearing assembly configured to engage with the head, and a pin extendable through the bearing assembly and the head. The pin can be extendable into first and second ears of the yoke to enable pivotable movement of the ulnar component relative to the humeral component. The elbow prosthesis can include a first fastener insertable through the first ear of the yoke and configured to engage with the pin, and a second fastener insertable through the second ear of the yoke and configured to engage with the pin.

Apparatus and methods for total elbow replacement are provided to allow a surgeon to intraoperatively select a linked or unlinked constraint by utilizing a connection located on the body of the ulnar and/or humeral stem. Additional modularity also allows the selection of a cemented or cementless stem as described herein. The modularity and adjustability provides a number of advantages.

Apparatus and methods for total elbow replacement are provided to allow a surgeon to intraoperatively select a linked or unlinked constraint by utilizing a connection located on the body of the ulnar and/or humeral stem. Additional modularity also allows the selection of a cemented or cementless stem as described herein. The modularity and adjustability provides a number of advantages.

The improved endoprosthetic device surface treatment encourages soft tissue attachment thereto. A porous mesh surface treatment creates on an outer surface of the endoprosthetic device a three-dimensional surface structure similar to cancellous bone. Suture attachment features are provided at various locations around the treated surface structure to initially affix a vascularized soft tissue to the treated surface. As the patient heals the soft tissue grows and infiltrates the porous mesh surface to achieve an attachment strength substantially equal to the surrounding tissue.

The implantable prosthesis for replacing a human knee joint comprises a femoral prosthetic element (12) and a tibial prosthetic element (14) which are articulated with one another by means of a joint device (30) for the purpose of executing a knee bend. The tibial prosthetic element (14) has a through-opening (40) for the passage of a tool (84), a rod-like shaft anchoring part (32) or an intramedullary lengthening nail (80). In order to reduce the extent of a surgical intervention and thus the risk of infection also for the lengthening of the tibia, the joint device (30) is designed such that it forms a guide channel (42) for the passage of the tool (84), the rod-like shaft anchoring part (32) or the intramedullary lengthening nail (80) from the outside, which guide channel is in alignment with the through-opening (40) and is in connection therewith when the tibial prosthetic element (14) and the femoral prosthetic element (12) are arranged at a predetermined angle relative to one another in a functional position corresponding to a knee bend.

An artificial joint includes a first engagement structure, a first connecting member, a second engagement structure, and a second connecting member. The first engagement structure has an external gear. The first connecting member is connected to the first engagement structure and configured to connect a femur. The second engagement structure has an internal gear. The external and internal gears are meshed with each other respectively based on a first pitch circle and a second pitch circle. The first pitch circle is greater than the second pitch circle. The center of the second pitch circle is located within the first pitch circle. The second connecting member is connected to the second engagement structure and configured to connect a tibia.

A tibial insert includes a base and a post extending from the base along a longitudinal axis. The post has a medial surface, a lateral surface, and a height along the longitudinal axis. The medial surface has a medial section, and the lateral surface has a lateral section oriented substantially parallel to the medial section. The medial section and the lateral section each have a width in a substantially anterior-posterior direction that is sufficient to enable varus/valgus constraint over a flexion/extension range from extension to about 90 to 120 degrees of flexion when the tibial insert is mated with a femoral component.

The invention relates to a knee joint endoprosthesis has a tibia part, a femur part, a meniscus part arranged on the tibia part in mutually non-rotatable manner and a connecting device for connecting the tibia part to the femur part in articulated manner. Said femur part comprises at least one femur condyle having a femur condyle surface. Said meniscus part comprises at least one upper surface which faces the femur part and has at least one meniscus joint surface which touches the femur condyle surface of the at least one femur condyle. Said femur part and the tibia part are mounted such as to be rotatable relative to each other about a rotational axis.

A knee prosthesis system constructed in accordance to one example of the present disclosure can include a femoral component, a tibial component, a first femoral component insert, a second femoral component insert, a first tibial bearing, and a second tibial bearing. The knee prosthesis system may be configured in one of a non-hinged configuration and a second hinged configuration. In the first non-hinged configuration, the first femoral component insert is positioned relative to the femoral component and the first tibial bearing is positioned onto the tibial component. In the second hinged configuration, the second femoral component insert is positioned relative to the femoral component and the second tibial bearing is positioned onto the tibial component.

The present invention provides an artificial joint, including a femur connecting device, a tibia connecting device, and a receiving device, wherein the femur connecting device is connected and fixed with the receiving device and the tibia connecting device via a fixing member unparallel to a joint-twisting axis, and wherein cushion member receives the femur connecting device via a pivot-receiving surface and receives the tibia connecting device via a twist-receiving surface, thereby providing an durable and reliable artificial joint.