At ossiculoplasty for chronic otitis media, the stapes superstructure is found completely absent but the footplate is present and mobile. Which prosthesis is indicated to reconstruct sound transmission?

• A TORP (total ossicular replacement prosthesis) ✓
• B PORP (partial ossicular replacement prosthesis)
• C Grommet ventilation tube
• D Bone-anchored hearing aid implanted at the same sitting

Explanation

The choice depends on the stapes superstructure: when the superstructure is intact and mobile, a PORP connects the tympanic membrane graft to the stapes head, whereas absence of the superstructure with only a mobile footplate requires a TORP whose shaft sits directly on the footplate. Both provide a columellar connection from the drum to the oval window. B ventilation tube treats effusion, not ossicular discontinuity, and a bone-anchored device is reserved for unsuitable ears rather than reconstructed ones.

Reference: Scott-Brown's Essential Otorhinolaryngology, 3rd ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.