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Modern surgical treatment of otosclerosis - Helda - Helsinki.fi

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Stapedius tendon preservation 29<br />

Results <strong>of</strong> primary and revision surgery 30<br />

Surgical <strong>treatment</strong> <strong>of</strong> bilateral <strong>otosclerosis</strong> 31<br />

Cochlear implantation 33<br />

2.8 Complications 33<br />

Perioperative complications 33<br />

Sensorineural hearing loss 34<br />

Perilymph <strong>fi</strong>stula 35<br />

Reparative granuloma 36<br />

Vertigo 36<br />

Taste disturbance 37<br />

Facial paresis 37<br />

Suppurative labyrinthitis and meningitis 38<br />

Radiological evaluation <strong>of</strong> postoperative SNHL 38<br />

2.9 Conservative <strong>treatment</strong> 39<br />

Hearing aid 39<br />

Medical <strong>treatment</strong> 39<br />

3 AIMS OF THE STUDY 41<br />

4 MATERIALS AND METHODS 42<br />

4.1 Study design 42<br />

Study I 42<br />

Study II 42<br />

Studies III and IV 43<br />

4.2 Surgery 43<br />

4.3 Objective measurements and analysis 44<br />

Video-oculography 44<br />

Visual feedback posturography 45<br />

Audiogram 45<br />

Statistical analysis 45<br />

4.4 Ethical aspects 46<br />

5 RESULTS AND COMMENTS 48<br />

5.1 Simultaneous bilateral surgery (I) 48<br />

5.2 Outpatient surgery (II) 50<br />

5

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