Abstract: An implantable device includes a polymeric body and a metallic first mounting strip connected to a trailing end portion of the body. The body has a leading end portion, a first side surface, a second side surface, an upper surface, a lower surface and a central opening extending through the upper and lower surfaces. The central opening has an internal surface with an internal leading surface, a first internal side surface and a second internal side surface. A first depth is defined between the leading end and the internal leading surface, a first spacing is defined between the first side surface and the first internal side surface and a second spacing is defined between the second side surface and the second internal side surface. The first spacing is substantially the same as the second spacing and the first depth is less than the first spacing.

Abstract: A joint replacement kit for use in a joint replacement procedure replacing a portion of a body joint. The kit includes a cutting guide and a trial component wherein the cutting guide and trial component are packaged together. There is also provided a method for replacing a portion of a body joint. The method includes providing a joint replacement kit having a cutting guide and a trial component, positioning the cutting guide against an end portion of a bone, cutting the end portion of the bone with a cutting instrument, positioning the trial component to the cut end portion of the bone, and disposing of the cutting guide and trial component.

Abstract: A method for robotic knee surgery on a femur and tibia of a knee joint. A navigation system tracks positions of the femur and tibia during the surgery as the femur and tibia move during the surgery. Information relating to the tracked positions of the femur and tibia is communicated from the navigation system to the robotic system. This information is used to guide movement of a cutting tool of the robotic system relative to the femur and tibia so that material from the femur and tibia can be removed by the cutting tool without the use of physical resection guides.

Abstract: A cutting tool of a robotic system cuts away material from the femur without the use of physical resection guides while a navigation system tracks movement of the femur, with the navigation system cooperating with the robotic system to provide information associated with the position of the femur to the robotic system. The cutting tool of the robotic system also cuts away material from the tibia without the use of physical resection guides while the navigation system tracks movement of the tibia, with the navigation system cooperating with the robotic system to provide information associated with the position of the tibia to the robotic system. The navigation system enables separate tracking of the femur and tibia so that their respective positions can be determined when the femur and tibia move during surgery, with movement of the cutting tool relative to the femur and tibia represented on a display.

Abstract: A system for performing surgery on a femur and tibia of a knee joint. The system includes a robotic subsystem; a navigation subsystem in communication with the robotic subsystem; a control unit in communication with the robotic subsystem; and a display in communication with the control unit. The navigation subsystem provides the robotic subsystem with information relating to positions of the femur and tibia thereby enabling their separate tracking when the femur and tibia move during surgery. The navigation subsystem cooperates with the robotic subsystem to determine a position of the cutting tool relative to the femur and tibia to guide movement of the cutting tool to cut away material from the femur and tibia. The control unit receives information relating to the position of the cutting tool such that movement of the cutting tool relative to the femur and tibia during surgery is viewable on the display.

Abstract: To change a spatial relationship between two or more bones in a patient's body, a wedge member is moved into a joint between the bones. The wedge member may have a cam-shaped configuration and be rotated through less than a revolution to apply force against the bones. The wedge member may have a porous construction which enables bone to grow through the wedge member and immobilize the joint. The wedge member may be coated with and/or contain bone growth promoting material. The wedge member may be connected to only one of the bones or may be connected to two adjacent bones. If the wedge member is connected to only one bone, the joint may be capable of being flexed after the wedge member is inserted into the joint.