| 摘要 |
A navigation tool for locating an axis on or in relation to which an orthopaedic surgery procedure is to be performed includes a column member having upper and lower parts. The lower part can be fastened to a bone. The upper and lower parts are connected to one another with the mating surfaces in contact with one another in such a way that the upper and lower parts can be rotated relative to one another about an axis which is perpendicular to the mating planes. The tool also includes a guide having an opening extending through it, which is fastened to the upper part of the column member so that it extends transversely relative to the upper part of the column member and can be moved relative to the upper part of the column member so as to change the distance between the opening and the point at which the guide is fastened to the upper part of the column member. |
