The present invention provides a system, device, instruments and methods for inserting and/or improving the holding strength and purchase of a bone screw, bone pin, or bone dowel in bone. Embodiments include monolithic allograft tissue forms, multi-piece allograft tissue forms, distally expandable portions, partially and fully demineralized portions, and flexible connecting portions. Advantages of the allograft tissue forms of the present invention include improved pedicle screw blackout strength and improved filling of bone voids. Methods for making and instruments and techniques for inserting the augmentation device, system and screws or pins are also disclosed.
