Patent ID: 7967824

Claim:
A bone cutting fixture assembly for use as a guide for a cutting blade in shaping and preparing a bone to receive a component of a prosthesis, the fixture assembly comprising: a) a support structure providing a support surface extending along a support length; b) at least one fixing device extending beyond the support surface to enable the support structure to be affixed to a bone; c) at least one outrigger portion supported by the support structure and comprising a spike projecting in a downwardly direction sufficiently beyond the support surface to be anchorable into a bone; d) a first pair of side-by-side guide appendages, each having a first length extending from a first proximal portion supported by the support structure to a spaced apart first distal portion, wherein the first guide appendages have a circular cross-section perpendicular to the first length; e) a second pair of side-by-side guide appendages, each having a second length extending from a second proximal portion supported by the support structure to a spaced apart second distal portion, wherein the second guide appendages have a circular cross-section perpendicular to the second length; f) wherein the first and second guide appendages are separated from each other in the respective first and second pairs by respective first and second gaps of distances sufficient to enable the thickness of a cutting blade to pass between them; and g) wherein with respect to the support surface of the support structure, the first and second pairs of guide appendages are positioned one above the other such that an imaginary support plane bisects the first and second gaps to provide a cutting path at a desired angle for a cutting blade positioned between the first and second pairs of guide appendages.