After complete canal down Mastoidectomy two types of mastoid cavities are found - First -completely sclerosed – means no visible mastoid air cells remain in the operated mastoid cavity-here a large and thin fascia is laid to cover all the cavity and it epithelises by primary and early healing& gives long term dry cavity and Second - cellular cavity in which after completed Mastoidectomy, there still remain some cells at the floor. (it is always not possible to exenterate all the air cells or at least impractical because it may take long operating time or may create unnecessary large cavity) - If this cavity is lined by fascia or cavity filling is done, the remaining air cells mucosa will grow, keep on secreting mucus, granulate and the Mastoid cavity will no longer be dry. A new method of solving this problem is designed ‘cartilage tenting’- Conchal cartilage which is harvested at the time of meatoplasty is thinned out and laid down in the cavity with convexity upwards so that it creates a small cavity communicating to aditus and then to middle ear and large fascia is lined over it .It provides primary healed, early and long term, small, dry and healthy Mastoid cavity.
