| 摘要 |
A bone-cutting guide having a base with a cylindrical tunnel for guiding a cutting instrument therethrough. The guide is anchored to the bone in at least three locations. A positioning arm having a distal end anchors the guide within a joint. An anchoring pin is insertable through the base alongside the cylindrical tunnel to stabilize the guide against the bone being drilled. An embodiment of the invention includes two anchoring pins on either side of the cylindrical tunnel through the base. The positioning arm can be stabilized within a joint due the stabilizing spikes extending from the distal end of the arm. A curve is provided in the positioning arm between two spikes to provide an opening through which a reamer guided through the cylindrical tunnel may be operated.
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