| 摘要 |
In high tibial osteotomy a cross-shaped gauge having downwardly-depending side arms is positioned toward the end of the tibia, with the depending arms adjacent the arcuate path of the proposed saw cut. The cross-shaped gauge establishes a first indicia between said depending arms for positioning the arcuate axis of a semi-cylindrical saw, and a second indicia proximate the upper end of the longitudinal arm of the gauge for locating the saw arc. A saw blade of correct radius is then selected. The first indicia established by the gauge positions a first hole drilled through the bone for receiving a guide pin or rod, and the second indicia locates a second hole on the saw line for receiving a depth gauge. An arm on the depth gauge is aligned with a plurality of spacers placed on the aforementioned pin or rod, and the pin or rod is received along a cylindrical bore in the saw. When the saw is operated, the spacers arrest movement of the saw blade when it has passed through the bone.
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