摘要:
A femoral slideway and femoral slideway/femur-size template combination is employed to create an installed knee prosthesis that creates a reduced amount of stress in the collateral ligaments relative to previous prosthesis. In one embodiment, the reduced stress is achieved by employing a femoral slideway/femur-size template combination which results in installation of a femoral slideway which has a smaller dorsal-ventral dimension than a corresponding dimension of the femur prior to resection.
摘要:
A femoral slideway and a femoral slideway/femur-size template combination is employed to create an installed knee prosthesis that creates a reduced amount of stress in the collateral ligaments relative to previous prostheses. In one embodiment, the reduced stress is achieved by employing a femoral slideway/femur-size template combination which results in installation of a femoral slideway which has a smaller dorsal-ventral dimension than a corresponding dimension of the femur prior to resection.
摘要:
The kit for implanting a cementable endoprosthesis comprises a fitting instrument (3) and at least two components to be implanted, namely an endoprosthesis shaft (4) and a proximal centering and/or sealing element (1), the shaft (4) and the fitting instrument (3) being designed to be able to be coupled to each other, and the centering and/or sealing element (1) being designed to be placeable on the shaft (4) and to be displaceable in the direction of extension of the latter, and either the fitting instrument (3) comprising a limit stop part (3e) which forms a limit stop relative to the centering and/or sealing element (1), or a marking (6) being arranged on the fitting instrument (3) and on the shaft (4) in order to ensure a defined mutual position between the centering and/or sealing element (1) and the shaft (4).
摘要:
A tibia part of a knee joint prosthesis includes a tibia platform having a distal side, and an anchoring element. The anchoring element is arranged on the distal side of the tibia platform and attached to the tibia platform. In one embodiment, the anchoring element is formed by a shield having a height which is smaller than a width of the shield, and the shield has a U-, C- or V-shape as seen from the tibia platform.
摘要:
Aiming device for an implant to attend trochanter and subtrochanter fractures, comprising a head for connecting a famur pin and with an aiming arm (10) mounted laterally on the head which extends approximately -arallel to the femur pin and at least two slanted aiming passages (12, 13) aligned to proximal slanted passages of the femur pin for a shank neck blade or the like, and at least two transverse aiming bores aligned to distal transverse bores of the femur pin for accommodating a strike-in sleeve and/or bore sleeve. The slanted aiming passages (12, 13) include different angles relative to the aiming arm axis (11). The longitudinal axes of the slanted aiming passages (12, 13) further cross the longitudinal axes of the transverse aiming bores (21, 22). The aiming arm (10) and head for connection of the femur pin are detachable joined together. The transverse aiming bores (21, 22) are part of a plateshaped insert element (insert plate 20) which is placeable and fixable within a corresponding passage (19) in the airming arm (10).
摘要:
An endoprosthetic knee joint has a femur portion, a tibia portion, and a coupling portion. The femur portion has a femur shaft having convexly curved condyle shells at a lower end, the shells having primary slide surfaces and two spaced apart side walls forming an intercondylar space. The tibia portion has a tibia shaft with a tibia plateau at an upper end, upon which are formed secondary slide surfaces. The tibia plateau has an axial recess with a cross-section which expands toward the plateau from the depth of the recess on one side to a slot in the plateau. The coupling portion has a coupling pin rotatably housed in the recess, and a joint head at the upper end of the pin projects into the intercondylar space. During coupling of the parts of the prosthesis, the knee need not be stretched by the length of the coupling pin, but rather the pin can be introduced into the tibia portion by simple pivoting.