Provided is a surgical instrument (24) which is directly used during surgery and makes it possible to accurately verify the locations in which recesses (44, 46) are to be formed in the surface of a bone (14) of a patient on which surgery is to be performed. Further provided is a verification instrument (34) which is also directly used during surgery and makes it possible to precisely verify whether the recesses (44, 46) formed in the surface of the bone (14) of the patient on which surgery is to be performed are the necessary shape or not. The surgical instrument (24) has an inner surface (26) which matches the surface shape of the bone (14) of the patient on which surgery is to be performed, and has through-openings (30, 32) formed so as to correspond to the locations in which the recesses (44, 46) are to be formed. The verification instrument (34) has projections (40, 42) which project from an inner surface (36) and correspond to the recesses (44, 46) to be formed.
