ABSTRACT
The concept that a fully normal mastoid is a pneumatized one, communicating with the middle ear and probably serving as a pneumatic reservoir, is adopted. In this work, 50 patients with postoperative cavity problems were managed in ENT Department, Assiut University Hospital. Three techniques were managed in the ENT Department, Assiut University Hospital. Three techniques were used for the management of the cavity problems [the temporalis myofascial flap and cartilage pate to fill the cavity] and hydroxy apatite ceramic to build up the posterior bony wall and re-create a pneumatic mastoid type. An improvement of otorrhea was reported more in conchal cartilage pate technique. Hearing gain was poor in muscle flap obliteration, while the recreation of mastoid pneumatization hydroxyapatite technique only gave better results