Patent ID: 7942882

Claim:
A system for implanting a prosthesis in a distal humeral trochlea of an elbow joint, the tool comprising: a first guide tool comprising a boring guide aligned to create a bore in the distal humeral trochlea along a geometric axis of bend of the elbow joint when the first guide tool is engaged with the distal humeral trochlea; a first pin insertable into a bore formed by the first guide tool in the distal humeral trochlea, the first pin providing a physical reference corresponding to the geometric axis of bend; a second pin insertable into a humeral medullary canal generally along a diaphyseal axis of a humerus and generally perpendicular to the first pin, the second pin providing a physical reference corresponding to the diaphyseal axis; at least one template adapted to measure an offset between the geometric axis of bend and the diaphyseal axis; and a first cutting template engaged with at least the first pin and oriented to cut the distal humeral trochlea generally perpendicular to the geometric axis of bend.