Surgical results of the middle ear reconstruction after radical operation in 35 patients were presented. The surgery included myringo- and ossiculoplasty as well as rebuilding of the posterior canal wall and obliteration of the mastoid cavity. Most frequently posterior canal wall was reconstructed with the piece of cortical bone, rarely with the cartilage. Mastoid cavity was obliterated with a musculo-periosteal flap and bone chips. Early postoperative results, both anatomical and functional, were satisfactory. The hearing gain was from 5 to 35 dB, mean 17 dB. After a few years' observation, moderate postoperative cavitation of the ear canal was shown in all patients. The mean volume of the ear canal was 1.8 ml (1.4 to 2.8 ml). All ears were dry, however with good, smooth epidermal lining. Social hearing was reached in 42% of cases.