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01 June 2012

Bony wall damage in the region of the middle and posterior cranial fossa observed during otosurgery

Maciej WiatrABDEG, Jacek SkładzieńABDF, Jerzy TomikBC, Paweł StrękDEG, Anna Przeklasa-MuszyńskaCEF

DOI: 10.12659/MSM.882871

Med Sci Monit 2012; 18(6): BR215-220

Abstract

Background: Bony wall damages in the region of the middle and posterior cranial fossa are usually observed in cases of chronic otitis media. These defects can also be congenital, post-traumatic, iatrogenic or due to tumors. They can potentially lead to the development of intracranial complications.
Material/Methods: We analyzed patients who were diagnosed as having bony wall damage in the region of the middle and/or posterior cranial fossa. We also discuss methods of reconstruction during otosurgery.
The analysis involves patients who underwent middle ear operations in the Department of Otolaryngology at the Jagiellonian University of Krakow between 2004 and 2008; 495 otosurgeries were performed during this period of time.
Results: In 70% of patients the reason for otosurgery was chronic otitis media. In 20%, bone defects occurred simultaneously with otosclerosis. Less than 10% underwent otosurgery for other reasons. Bony wall damage in the region of the middle and posterior cranial fossa were diagnosed in 46 patients who underwent surgery. In patients with bony wall damage, otogenic intracranial complications were described in 14 cases.
Conclusions: The performed reconstruction methods for bony wall damage, which used the fascia, strengthened with the pedicle muscle flap for larger defects and with either bone lamella or cartilage in specific cases, proved successful.
Nearly 80% of bony wall damages in the region of the middle and posterior cranial fossa remain asymptomatic and are discovered incidentally during middle ear surgery. The above observations emphasize the significant role of pre-operative imaging diagnostics.

Keywords: Otologic Surgical Procedures - methods, Otitis Media - surgery, Ear, Middle - surgery, Cranial Fossa, Posterior - surgery, Child, Adult, Adolescent, Reconstructive Surgical Procedures - methods, Tomography, X-Ray Computed, young adult

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