Association of ventral bulla osteotomy and lateral wall resection to treat dogs presenting otitis externa and media.

Ventral bulla osteotomy (VBO) with curettage is a surgical procedure that involves removal of a portion of the ventral wall of the osseous tympanic bulla and removal of the contents including the epithelial lining. This technique is commonly performed to remove inflammatory polyps in cats or bulla neoplasia, and rarely to treat otitis media [4, 6, 13, 15]. A lateral wall resection of the vertical ear canal (LWR) consists in reflecting ventrally the lateral part of the vertical ear canal in order to improve drainage and ventilation of the ear canal [16]. It is indicated when otitis externa has not responded favourably to proper medical treatment and the horizontal ear canal is still patent. It permits drainage of the ear canal and provides ventilation to reduce moisture, humidity and temperature, which all favour infection [7].

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[13]  Parker Aj,et al.  Bulla curettage for chronic otitis media and interna in dogs. , 1976 .

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[15]  C. Zepp.  Surgery for the Relief or Correction of Disease of the Ear of the Dog and Cat. , 1950, Canadian journal of comparative medicine and veterinary science.