EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY, vol.271, no.9, pp.2393-2400, 2014 (SCI-Expanded)
With the use of high-resolution computed
tomography, this retrospective clinical study evaluated the
factors affecting hearing in patients who were operated on
due to chronic otitis media with cholesteatoma and
underwent ossiculoplasty with titanium total ossicular
replacement prosthesis (TORP). Fifteen patients with
postoperative hearing results of 20 dB or less air-bone
gap, and thirteen patients with postoperative hearing
results of 21 dB or more air-bone gap were the subjects of
this study. All patients were operated on due to chronic
otitis media and underwent ossiculoplasty with titanium
TORP. High-Resolution Computed Tomography (HRCT)
and pure-tone audiometry were performed on each patient
after an average of 17 months, postoperatively. Threedimensional
oblique CT cross-sections were analyzed with
Vitrea 2 software. The presence of soft tissue in the
middle ear and contact between the prosthesis head plate
and the bone had an adverse effect on hearing (p\ 0.05).
The angle between the TORP and the oval window did not
seem to affect the hearing results (p[ 0.05). The study
results indicate that an examination of the patients with
poor postoperative hearing with HRCT may help find the
possible cause and allow for the determination of the
prosthesis location.