Surgery – Instruments – Orthopedic instrumentation
Patent
1995-07-05
1997-07-22
Buiz, Michael Powell
Surgery
Instruments
Orthopedic instrumentation
606 89, 606 96, 606 86, A61B 1758
Patent
active
056499280
ABSTRACT:
A device for determining resection surfaces on the femur (20) and on tibia (10) in preparation for implantation of a total knee endoprosthesis includes a femoral saw template (12) and a removable tibial component (35) which can be locked in the area of the tibial tuberosity and repositioned there in exactly the same place. The tibial component has a fixed plate and a movable plate. The frontal plane of the tibia is first established and, using the movable plate, pushed in parallel in the direction of the femoral saw template (12), which at this stage is arranged on the frontal aspect of the femur (10) for pivoting around the femoral axis. The movable plate (24) of the tibial component (35) is pushed until finally at least a linear contact between tibia positioners (25) of the movable plate and the femoral saw template (12) is created. The device achieves precise resection surfaces on the femur (10) in such a way that the dorsal and ventral cuts in the femur (10) run exactly parallel to the frontal aspect of the tibia (20).
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Von R. Forst and B. Hausmann, A Special Jig For Tibial Resection For The Implantation Of GSB-knee-prostheses In Problematic Cases, med-orthop-Techn., pp. 162-166, 1984.
Buiz Michael Powell
ESKA Medical GmbH & Co.
Leonardo Mark S.
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