| 摘要 |
The guide consists of a support (6) shaped to fit over a predetermined section (7) of a bone, e.g. its external cortical surface. The support is made with an aperture (8) to guide a cutter making a channel for an angled vane on the plate, and slots (9) to guide a cutting instrument such as a saw blade for performing the osteotomy. A fixing screw (10) holds the guide in place against the bone while the channel and saw cuts are being made. The saw blade guide slots are set at an angle to one another to allow a wedge-shaped section to be cut from the bone. The vane on the osteotomy plate is made with a rib of varying height along its under-surface.
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