Fig. 3From: Management of frontal sinus trauma: a retrospective study of surgical interventions and complicationsa and b Combined anterior and posterior wall fracture of the frontal sinus. c and d Osteotomized and elevated anterior wall of the frontal sinus and exposed posterior wall. The mucous membrane of the invaded sinus was removed. e Sinus obliteration performed using hydroxyapatite cement and anterior wall repositioningBack to article page