| 摘要 |
<p>An improved surgical cutting surface (14) for guiding bone saws in joint surgery and similar instruments is disclosed. The cutting block (10) is provided with one or more cutting guide surfaces (14) that may be positioned on exterior faces of the block (10) or along channels (114) within the block (112). The reference cutting surface (14) of the material is composed of a material that has a Knoop hardness of 466 or greater (under a 500 gm load or greater), a chrome content of less than 10 % and a nickel content of less than 4 %. The cutting guide (12) is also variously configured with rails (18) or protuberances (22, 24) to provide a reference cutting surface having reduced frictional characteristics. Also a dual cutting block system (28, 46) for femoral resection is provided. Each of the two cutting blocks (28, 46) is configured to provide a cutting guide (42, 52) for both a standard cut and the complementary chamfer cut.</p> |
