A single use cutting jig for use in cutting a bone in orthopaedic surgery, the cutting jig having: a first face shaped to receive the end of the bone to be cut, a second face provided with one or more cutting slot, the or each slot extending through the cutting jig from the second face to the first face and being shaped for receiving a cutting device, wherein the cutting jig is molded from plastic, and wherein the interior surface of the or each cutting slot is provided with a metal coating.
