A method of increasing a pullout force of a threaded fastener in osteoporotic bone includes drilling a hole in the bone. The spacer fabric is impregnated with a bone growth agent. A tube of the spacer fabric is sized to the hole in the bone. The tube of the spacer fabric is inserted in the hole of the bone. The spacer fabric is made from Nitinol wire. A threaded fastener is inserted into a central lumen of the tube of the spacer fabric to provide a rigid structure. The bone is grown into the spacer fabric.
