Skip to main content Accessibility help

Reduction of cicatricial stenosis after canalplasty for auditory exostoses

  • X M Rojas (a1), M M Bailón (a1) and C F González (a1)



Canalplasty for auditory exostoses is reserved for symptomatic patients. This study reviewed the outcomes of our technique regarding cicatricial stenosis.


A chart review was conducted on patients undergoing canalplasty for auditory exostoses between 2002 and 2017. The surgical technique is described.


The study comprised 43 adults (50 operated ears). Exostoses were bilateral in 40 cases (94 per cent) and occlusive in 33 (66 per cent). After drilling, the external auditory meatus was covered with a graft in 34 cases (68 per cent) and a silicone sheet was used in 32 (64 per cent). Cicatricial stenosis appeared in eight cases (16 per cent). Skin grafts were not used in six of these eight cases (p < 0.04), and silicone sheets were used only in one of these eight (p < 0.01).


Canalplasty is challenging because of its potential complications. Our data showed that the use of skin grafts and silicone sheets to cover the bared external auditory meatus was associated with a lower rate of cicatricial stenosis.


Corresponding author

Author for correspondence: Dr Xenia Mota Rojas, Department of Otolaryngology, Complexo Hospitalario Universitario de Santiago, Travesa da Choupana (s/n), 15706 Santiago de Compostela, Spain E-mail:


Hide All

Dr X M Rojas takes responsibility for the integrity of the content of the paper



Hide All
1Grinblat, G, Prasad, SC, Piras, G, He, J, Taibah, A, Russo, A et al. Outcomes of drill canalplasty in exostoses and osteoma: analysis of 256 cases and literature review. Otol Neurotol 2016;37:1565–72
2Sanna, M, Russo, A, Khrais, T, Jain, Y, Augurio, M. Canalplasty for severe external auditory meatus exostoses. J Laryngol Otol 2004;118:607–11
3Okumura, MM, Boyadjian, CH, Eggers, S. An evaluation of auditory exostoses in 621 prehistoric human skulls from coastal Brazil. Ear Nose Throat J 2007;86:468–72
4DiBartolomeo, JR. Exostoses of the external auditory canal. Ann Otol Rhinol Laryngol 1979;88:220
5González Reimers, E, Lorenzo de la Peña, L, Sarmiento-Herrera, R, Pérez Piñeiro, B, Arnay de la Rosa, M. Ear exostoses: a past and present lesion [in Spanish]. Rev Esp Enferm Metab Oseas 2008;17:112–13
6Alexander, V, Lau, A, Beaumont, E, Hope, A. The effects of surfing behaviour on the development of external auditory canal exostosis. Eur Arch Otorhinolaryngol 2015;272:1643–9
7Van Gilse, PHG. Subsequent observations on the genesis of external auditory canal exostoses by cold water irritation [in French]. Acta Otolaryngol (Stockh) 1938;26:343–52
8King, JF, Kinney, AC, Iacobellis, SF, Alexander, TH, Harris, JP, Torre, P et al. Laterality of exostosis in surfers due to evaporative cooling effect. Otol Neurotol 2010;31:345–51
9Altuna Mariezkurrena, X, Vea Orte, JC, Camacho Arrioaga, JJ, Algaba Guimerá, J. Surgical treatment of exostosis in the external auditory canal [in Spanish]. Acta Otorrinolaringol Esp 2006;57:257–61
10Hutchinson, DL, Denise, CB, Daniel, HJ, Kalmus, GW. A reevaluation of the cold water etiology of external auditory exostoses. Am J Phys Anthropol 1997;103:417–22
11House, JW, Wilkinson, EP. External auditory exostoses: evaluation and treatment. Otolaryngol Head Neck Surg 2008;138:672–8
12Hetzler, DG. Osteotome technique for removal of symptomatic ear canal exostoses. Laryngoscope 2007;117(1 Pt 2 suppl 113):114
13Fisher, EW, McManus, TC. Surgery for external auditory canal exostoses and osteomata. J Laryngol Otol 1994;108:106–10
14Puttasiddaiah, PM, Browning, ST. Removal of external ear canal exostoses by piezo surgery: a novel technique. J Laryngol Otol 2018;132:840–1
15Barrett, G, Ronan, N, Cowan, E, Flanagan, P. To drill or to chisel? A long-term follow-up study of 92 exostectomy procedures in the UK. Laryngoscope 2015;125:453–6
16Mudry, A, Hetzler, D. Birth and evolution of chiselling and drilling techniques for removing ear canal exostoses. Otol Neurotol 2016;37:109–14
17Longridge, NS. Exostosis of the external auditory canal: a technical note. Otol Neurotol 2002;23:260–1


Reduction of cicatricial stenosis after canalplasty for auditory exostoses

  • X M Rojas (a1), M M Bailón (a1) and C F González (a1)


Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed