Composite bone graft kit

1. A composite bone graft comprising:

an allograft bone component;

a cylindrical shell; and

a synthetic bone substitute, wherein the synthetic bone substitute is in contact with the allograft bone component and further comprising a resorbable mesh casing, wherein the composite bone graft is disposed within the resorbable mesh casing and the resorbable mesh casing holds the composite bone graft together and prevents dissipation of the composite bone graft, wherein the composite bone graft is in the form of a cylinder with an inner core and outer layer, and wherein the inner core is disposed within the cylindrical shell and the outer layer is disposed on the outside of the cylindrical shell.

2. The composite of claim 1 , wherein the inner core is composed of the allograft bone component and the outer layer is composed of the synthetic bone substitute.

3. The composite of claim 1 , wherein the inner core is composed of the synthetic bone substitute and the outer layer is composed of the allograft bone component.

4. The composite of claim 1 wherein the allograft bone component and synthetic bone substitute are at least partially infused with an additive, wherein the additive is one or more of platelet rich plasma, bone marrow aspirate, or stem cells.

5. The composite of claim 1 , further comprising a bone graft syringe, wherein the composite bone graft is positioned within the bone graft syringe.

6. The composite of claim 1 , wherein the synthetic bone substitute is as beta-tricalcium phosphate, hydroxyapetite, polyglycolic-polylactid acid, or poly-lactic acid; and wherein the allograft bone is in the form of dense cortical bone strips, packed bone chips, or demineralized bone matrix.

7. The composite of claim 1 , wherein the inner core is 5 to 15 mm in diameter and the outer layer is 2 to 15 mm in thickness.