| 摘要 |
PROBLEM TO BE SOLVED: To provide a support tool for supporting an easier decision by an operator on an ideal osteotomy position of the shank during operation of an artificial knee joint replacement. SOLUTION: A pin is driven into the lower leg of an anesthetized patient (S2), a rectangular base board which works as a base is attached to the pin (S3), and while this state is kept, a roentgen image is photographed (S4). Considering the roentgen image, a gap between the upper surface of the base board and the ideal osteotomy position is measured (S5). In order to fill the gap, a plurality of metal plates for use are selected among a plurality of rectangular first class metal plates, each of which is tapered at a different angle in the short side direction, a plurality of rectangular second class metal plates, each of which is tapered at a different angle in the long side direction and a plurality of rectangular third class metal plates, each of which has a different thickness (S6), incised (S7) and the plurality of selected metal plates are laminated and fixed (S8) on the base board. The osteotomy of the shank is performed at the uppermost surface of the laminate (S9) and an implant is attached (S10). COPYRIGHT: (C)2004,JPO
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