A patient with tubotympanic CSOM has a dry central perforation with an intact, mobile ossicular chain and normally functioning stapes. According to Wullstein's classification, closure of this perforation alone constitutes which type of tympanoplasty?
- A Type III
- B Type II
- C Type I ✓
- D Type IV
Correct answer: C. Type I
Explanation
Wullstein Type I (myringoplasty) is grafting of a perforated tympanic membrane with an intact and mobile ossicular chain, giving the best hearing outcome. Type II places the graft on the incus or malleus after partial ossicular destruction, Type III interposes the graft directly on the stapes head (myringostapediopexy), and Type IV creates a round window baffle with an immobile stapes footplate. The intact mobile chain described here fixes the answer as Type I.
Reference: Dhingra's Diseases of Ear, Nose and Throat, 8th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.