Three-dimensional assessment of the temporal bone and mandible deformations in patients with congenital aural atresia

Publication date: October 2017
Source:International Journal of Pediatric Otorhinolaryngology, Volume 101
Author(s): Yaoyao Fu, Chenlong Li, Peidong Dai, Tianyu Zhang
ObjectiveTo investigate the deformations of temporal bone and mandible combined with congenital aural atresia.MethodsA total of 158 patients with congenital aural atresia were included in the study. The raw CT data of the temporal bone was imported into MIMICS v 12 and threshold dissection, region growing and three-dimensional (3D) calculation were used to calculate 3D models. The 3D characteristics of the temporal bone and upper part of mandible were assessed.ResultsThe tympanic part of the temporal bone was all undeveloped. Of all the patients included, 14 patients were found to have severe maxillofacial malformations. Among them, 2 cases have floating arch, 4 cases have interrupted arch, 5 cases have mandibular processes hypoplasia and 3 cases have interrupted arch combined with severe maxillary malformation. Ten of the 14 patients were suffered from dysplasia of the mastoid part of the temporal bone as well.ConclusionMaxillofacial malformations may sometimes coexist with congenital aural atresia. Otolaryngologists should not neglect the coexisted maxillofacial malformations and give timely referral to maxillofacial surgeons.



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