Type II and type III timpanoplasties - A 10 year revision
DOI:
https://doi.org/10.34631/sporl.99Keywords:
timpanoplasties, Air bone GAP, Pure tone averageAbstract
This study aims to assess the epidemiological and functional differences between Portmann´s type II (T2) and III (T3) tympanoplasties trying to find functional predictors of success.Retrospective study of 171 patients undergoing a T2 or T3 surgery between 2000 and 2009.
A total of 171 cases (119 T2 and 52 T3) were pooled. T2 had a preoperative air bone GAP (ABG) of 28.1+8.5dB and pure tone average (PTA) of 47.1±15.2dB, while T3 showed a 32.8±8.0dB ABG and a 55,9±16,4dB PTA (p<0.05). The average improvement was 9.8±13.8dB and 7.0±11.8dB for T2 and T3, respectively (p<0,05). Functional success was significantly different between T2(82%) and T3(63,5%,p<0,05).
Our data suggests that the T2 have younger individuals and better preoperative ABG and PTA. Preoperative PTA is a predictor of functional success T2. Functional success is greater in T2 rather than T3.
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