A bone joint prosthesis can augment or replace a natural bone joint. The prosthesis can include a joint head portion and an elongated stem. The stem can include a proximal end coupled to the joint head portion and a distal end having a sharp edge. A stem body, including a bore, can extend between the proximal end of the elongated stem and the sharp edge at the distal end of the elongated stem. The sharp edge of the elongated stem can be capable of being pressed into a long bone so as to core intact marrow into the bore of the stem body. A method can include preparing a bone for a bone joint prosthesis. A sharp distal end of an elongated stem of the bone joint prosthesis can be pressed into the bone. Intact bone marrow can be cored into a bore of the elongated stem.
