ENT Which is the most common type of congenital ossicular dysfunction? A Isolated stapes defect B Stapes defect with fixation of footplate and lenticular process involvement. C Defective lenticular process of incus D None of the above. 💡 Explanation Which is the most common type of congenital ossicular dysfunction? ✓ Correct Answer: B. Stapes defect with fixation of footplate and lenticular process involvement.