Abstract: This orthopedic assembly has a connection between the ancillary tool and the stem or raspatory that allows both the raspatory and the femoral stem to be positioned in the intramedullary channel of a femur by means of the same ancillary tool. The connector includes a tapped hole extending from the bottom of a conical recess in the femoral end of the stem, or of the raspatory, and a threaded projection provided on the ancillary tool and designed to be screwed into the tapped hole. The bottom of the conical recess in the raspatory and in the stem has a profiled indentation whose edge includes alternating concave and convex curves and is designed to receive a male indexing part of a corresponding profile arranged on the end of the removable neck.