[Development of auditory threshold in the 1st weeks after stapes surgery. Study of 50 cases]

We have treated 50 cases of otosclerosis by transplatinary piston. We made a statistical study of the recuperation modalities concerning frequency and time. The highest hearing gain was obtained each time between 250 cps and 500 cps. The maximum hearing recuperation occurs usually, three weeks after the intervention for the lower and mid-frequencies, two months for the higher frequencies. Finally we have noticed that the intervention was helpful as well for the opposite ear as for the operated one.