Paprosky “7” graft for segmental acetabular deficiency. A, Distal femoral allograft is shaped to resemble numeral 7. B, Graft is shaped to fit acetabular deficiency and fixed as shown, with several screws placed above acetabulum through remaining cortical portion of graft. C, Graft is reamed, and revision component is implanted. SEE TECHNIQUE 3.26.