| abstract |
A screw structured to engage bone has a stem with threads and an inner chamber. The inner chamber is in fluid communication with one or more ports along the stem. A polymeric material is provided with the screw. After implantation of the screw in bone, energy is applied to the polymeric material to convert the material to a more fluid form, and while in this form, the polymeric material is flowed from the inner chamber and out through the one or more ports into boney material to provide reinforcement. |