High velocity type injuries to the diaphyseal region of the long bones can often result in the literal explosion of the bone into numerous small fragments. Efforts to anatomically reconstruct such severely comminuted fractures, using only the traditional means of internal fixation, usually requires lengthy and difficult surgery which, in turn, increases both the anesthetic risk and the chance of post-operative infection. Alternative methods have been used in an effort to simplify and shorten the repair of such fractures. One such method involves the use of a full thickness cortical allograft to actually replace the shattered section of bone. This allograft is then coupled with cancellous autografts to help stimulate both new bone formation and the incorporation of the cortical graft by the host. An allograft is, by definition, a tissue which is removed from one animal and subsequently implanted into another animal of the same species. Allografts are often collected at the time a donor animal is available and can then be preserved and stored until required for use. An autograft, on the other hand, is obtained from a donor site within the recipient's own body and is collected just prior to implantation at the recipient site.