Abstract:
CONCLUSION:Mean incudostapedial joint (ISJ) angulation of atretic ears was statistically wider than ISJ angulation of non-atretic ears. Postoperative hearing results in the narrow tympanoplasty type II (T2) subgroup were better than those in the wide T2 subgroup. In cases of abnormally wide ISJ angulation, we recommend that partial ossicular reconstruction (POR) be used as a surgical means of achieving hearing improvement. OBJECTIVE:To report the results of ISJ angulation in patients with congenital aural atresia and its effects on postoperative hearing improvement. METHODS:Patients undergoing canaloplasty with T2 (149 ears) and canaloplasty with POR (32 ears) were enrolled. The T2 group was dichotomized according to an ISJ cut-off of an angle of 120° into the 'narrow' T2 and 'wide' T2 subgroups. The pre- and postoperative air-bone gap (ABG) and ABG change were analyzed. RESULTS:Mean ISJ angulation of non-atretic ears was 93.06 ± 13.21° and that of atretic ears in the T2 group was 118.39 ± 19.60° (p < 0.001). Mean short- and long-term postoperative ABGs were better in the narrow T2 subgroup than in the wide T2 subgroup (p = 0.01 and 0.03, respectively). The short-term postoperative ABG and ABG change in the POR showed superior results to those of the wide T2 subgroup (p < 0.001 and 0.041, respectively).
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Kim DW,Lee JH,Song JJ,Chang H,Choi YS,Jang JH,Kim JH,Oh SH,Chang SOdoi
10.3109/00016489.2011.552920subject
Has Abstractpub_date
2011-07-01 00:00:00pages
701-7issue
7eissn
0001-6489issn
1651-2251journal_volume
131pub_type
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