Apparatuses and methods for reinforcing weakened or fractured bone (40) are disclosed. An apparatus for delivering a bone reinforcing mixture to a bone (40) includes a tube (22) having a proximal end (27), a distal end (23), and a longitudinal axis therebetween, wherein the tube (22) has at least one inner lumen (24) capable of allowing a bone reinforcing mixture to pass through, and a bone fitting portion (30) having an opening for accepting the tube (22), an insertion portion for insertion into the bone (40), and at least one relief valve (36).
