[Ear banks--difficulties and results].

The author presents the various difficulties in the formation of a bank of tympano-ossicular homografts. The difficulties are in the laws, the costs, and the technique. The question is : Are the difficulties greater than the results? After four years, the results obtained at the Hôtel Dieu in Quebec City seem to prove that if the indications remain restricted, we should keep on the efforts to form private banks. The global results for 90 cases are 77 per cent of tympanic integrity and 58 per cent with less than 20 dB of air-bone gap.