TY - JOUR
T1 - Depth of stapes prosthesis in the vestibule
T2 - Baseline values and correlation with stapedectomy outcome
AU - Yehudai, Noam
AU - Masoud, Saqer
AU - Most, Tova
AU - Luntz, Michal
PY - 2010/8
Y1 - 2010/8
N2 - Conclusion: Deeper protrusion of the prosthesis into the vestibule does not correlate with worse postoperative hearing outcome. Objectives: To establish baseline values for the depth of the stapes prosthesis in the vestibule after stapedectomy and to investigate a possible correlation between the relative prosthesis depth (actual depth expressed as a percentage of the vestibule depth) and the hearing results. Methods: This was a prospective case study. Sixteeen patients underwent stapedectomy and were examined by high-resolution CT of the temporal bone during the first week after surgery. They then underwent audiometric follow-up at specified intervals during the first postoperative year. The actual depth of the prosthesis in the vestibule, its relative depth, and correlations between the relative depth and postoperative hearing results (at 1 week, 1 month, and 1 year) or postoperative complications (prolonged vertigo and sensorineural hearing loss) were measured. Results: The actual depth of the prosthesis in the vestibule (mean ± SD) was 2.39 ± 0.42 mm (range 1.833.39 mm). The depth of the prosthesis relative to the depth of the vestibule was 52 ± 9.74% (range 41.374.2%). In general, deeper protrusion of the prosthesis into the vestibule did not correlate with a worse hearing outcome. On the contrary, the correlation between prosthesis depth and better hearing results was positive at several frequencies.
AB - Conclusion: Deeper protrusion of the prosthesis into the vestibule does not correlate with worse postoperative hearing outcome. Objectives: To establish baseline values for the depth of the stapes prosthesis in the vestibule after stapedectomy and to investigate a possible correlation between the relative prosthesis depth (actual depth expressed as a percentage of the vestibule depth) and the hearing results. Methods: This was a prospective case study. Sixteeen patients underwent stapedectomy and were examined by high-resolution CT of the temporal bone during the first week after surgery. They then underwent audiometric follow-up at specified intervals during the first postoperative year. The actual depth of the prosthesis in the vestibule, its relative depth, and correlations between the relative depth and postoperative hearing results (at 1 week, 1 month, and 1 year) or postoperative complications (prolonged vertigo and sensorineural hearing loss) were measured. Results: The actual depth of the prosthesis in the vestibule (mean ± SD) was 2.39 ± 0.42 mm (range 1.833.39 mm). The depth of the prosthesis relative to the depth of the vestibule was 52 ± 9.74% (range 41.374.2%). In general, deeper protrusion of the prosthesis into the vestibule did not correlate with a worse hearing outcome. On the contrary, the correlation between prosthesis depth and better hearing results was positive at several frequencies.
KW - Complications
KW - Hearing results
KW - Prosthesis depth
UR - http://www.scopus.com/inward/record.url?scp=77954648447&partnerID=8YFLogxK
U2 - 10.3109/00016480903555424
DO - 10.3109/00016480903555424
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
C2 - 20100131
AN - SCOPUS:77954648447
SN - 0001-6489
VL - 130
SP - 904
EP - 908
JO - Acta Oto-Laryngologica
JF - Acta Oto-Laryngologica
IS - 8
ER -