Preoperative air conduction

Postoperative air conduction

Preoperative bone conduction

Postoperative bone conduction

Preoperative air-bone gap

Postoperative air-bone gap

Localized otosclerosis

55

20

10

10

45

10

Extended otosclerosis

70

40

35

35

35

15

p < 0.05

p < 0.05