Computer-aided design and preparation of bone graft

A bone graft product suitable for use in a human being in need thereof comprising:

• a shaped piece of bone;
• and
• a sterile packaging containing the shaped piece of bone,
• wherein the shaped piece of bone is prepared by using computer-guided precision cutting an unshaped piece of bone from a human cadaver or a bovine animal, and the shaped piece of bone having a predetermined shape that is determined using computer-aided design,
• wherein the predetermined shape is determined based on the difference between the three dimensional shape of the bone at an intended graft site of the human being and the desired shape of the bone at the intended graft site of the human being after the graft is completed,
• wherein the shaped piece of bone has a desired shape and size that fits in the intended graft site precisely when inserted into the bone defect,
• wherein no part of the bone at the intended graft site is removed from the human being, and
• wherein the unshaped piece of bone comprises any piece of bone from a human cadaver or a bovine animal that was not prepared by combining smaller pieces of bones.