Treated osseous particulate fluff composition

A method of making a bone graft composition, the method comprising:

• generating a self-sustaining solid construct by drying a mixture of bone particles in water, saline, or other aqueous solution while in a constraining device or under pressure, the solid construct substantially free of bonding materials and having structural integrity to retain metallic pins and screws,
• wherein the bone particles comprise at least partially decalcified cortical elongate bone shards and/or fluff having a length between about 1 mm and about 10 mm and a diameter between about 50 microns and about 500 microns,
• wherein the solid construct includes at least 70% by weight of the at least partially decalcified cortical elongate bone shards and/or fluff,
• wherein the at least partially decalcified cortical elongate bone shards or fluff were cut from dehydrated bone tissue comprising shafts of long bone or cortical tables of flat bones before being at least partially decalcified in a decalcifying solution, and wherein the bone particles including the at least partially decalcified elongate bone shards and/or fluff were hydrated in the water, saline, or other aqueous solution prior to the drying in the constraining device or under pressure.