Type III tympanoplasty (myringostapediopexy) is indicated when which ossicle(s) are absent?
- A Malleus and incus, stapes suprastructure intact ✓
- B Malleus only
- C Entire ossicular chain including stapes footplate
- D Incus only
Correct answer: A. Malleus and incus, stapes suprastructure intact
Explanation
In the Wullstein classification, Type III tympanoplasty involves direct grafting of the neotympanum onto the intact stapes head (myringostapediopexy) when both the malleus and incus are absent but the stapes suprastructure remains intact. Type IV is used when only the footplate is present, and Type V for complete ossicular loss. An absent incus alone may be managed with PORP (partial ossicular replacement prosthesis).
Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.