Complete restoration of congenital conductive hearing loss by staged surgery: A case report

Figure 1 Pure tone audiogram. A: Before right exploratory tympanotomy; B: Three months after the division of the stapedial tendon on the left side; C: One year after right stapedotomy.

Figure 2 Temporal bone computed tomography showing stapedial tendon ossification on both sides (orange arrow).

Figure 3 Microscopic examination. A and B: Microscopic findings of the ossified stapedial tendon and after removal observed during left-sided exploratory tympanotomy; C and D: Microscopic findings of monorod-shaped stapes being removed and after insertion of the piston wire observed during right-sided stapedotomy. CT: Chorda tympani; I: Incus; ISJ: Incudostapedial joint; ST: Stapedial tendon; S: Stapes.