Class III Congenital Middle Ear Anomalies: Refining the Teunissen–Cremers Classification Based on Stapes Suprastructure Viability

Ossiculoplasty with PORP in viable cases demonstrated better ABG closure compared to TORP in non-viable cases. Further investigation is warranted to determine the influence of baseline hearing differences on these outcomes. A refined Teunissen-Cremers classification, subdividing class IIIa into IIIa1 (viable) and IIIa2 (non-viable) based on stapes suprastructure integrity, may improve prosthesis selection and prognostic assessment.