An impactor (39) for use in securing an orthopaedic implant (36) within a bone surface includes a shaft (40) having a first end (44) adapted to be impacted by a tool. The impactor further includes a head (50) having a first end (74) and a second end (100), in which the first end of the head is connected to the second end of the shaft and a second end of the head includes an impaction surface (106). The head further includes an anti-rotation projection (104) extending from the impaction surface and adapted for insertion within a groove (200) formed by the implant to prevent rotation of the head and shaft when the head is in contact with the implant.
