a broaching system is disclosed for creating a cavity in a bone such that the cavity has a cross section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side and such that the cavity is contiguous with a pre - existing conical cavity in the bone . the apparatus comprises a shaft and a broach . the shaft has a longitudinal axis . the broach is mounted to the shaft and has a first cutting side mounted at the acute angle relative to the longitudinal axis of the shaft . the first cutting side is formed to include teeth . the shaft and broach are configured so that when the longitudinal axis of the shaft is advanced into the bone along the axis of the bone , the teeth of the broach form the triangular cavity . a method for cutting a triangular cavity in bone is also described . the method comprises a providing a shaft step , an incising step and a cutting step . the provided shaft is configured to be movable relative to the bone to be prepared and includes a broach coupled thereto to dispose a cutting surface of the broach at an acute angle relative to the shaft . the shaft and broach have a width defined by the distance between the shaft and the outer most portion of the cutting surface . the incising step includes incising the patient adjacent the bone to be prepared to form an incision having a length approximation the width of shaft and broach . the cutting step includes cutting the cavity by drinking the broach by moving the shaft relative to the bone .