Fixed vs Measured Length of Stapes Prosthesis in Stapes Surgery

Author(s):  
Masoud Motasaddi Zarandy ◽  
Behrooz Amirzargar ◽  
Goli Golpayegani ◽  
Mina Motasaddizarandy ◽  
Hamed Emami
2019 ◽  
Vol 24 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Holger Sudhoff ◽  
Hans Björn Gehl ◽  
Ercan Boga ◽  
Stefan Müller ◽  
Katharina Wilms ◽  
...  

Background: The insertion of the stapes piston into the vestibule provides the physical basis for a successful stapedotomy. In routine clinical practice, two different ways to handle prosthesis length are performed: (1) an individualized measurement of the stapes prosthesis length or (2) a standard prosthesis length for all cases. Objective: The objective of this study was to compare both ways of handling prosthesis length and the effect of these methods on insertional prosthesis depth. Material and Method: We retrospectively evaluated 39 patients after performing a stapedotomy for radiologically estimated vestibular stapes prosthesis insertion depth. The individual measured length data were hypothetically changed to a standard length of 4.75, 5, 5.25, and 5.5 mm, and the insertion depths were compared. Results: The individually measured prosthesis lengths led to an insertion depth between 0.2 and 1.6 mm (mean 0.74 mm). The ratio of insertion depth/vestibular depth was between 8 and 59.1% (mean 26.6%). The different assumed standard lengths led to different rates of the vestibulum positions and possible bony contacts at the vestibulum floor. Conclusion: The individual measurement led to a zero rate of the vestibulum positions of stapes prosthesis pistons with a low insertion depth/vestibular depth ratio.


2011 ◽  
Vol 32 (9) ◽  
pp. 1415-1421 ◽  
Author(s):  
Joachim Albert Hornung ◽  
Christoph Brase ◽  
Johannes Zenk ◽  
Heinrich Iro

2009 ◽  
Vol 119 (12) ◽  
pp. 2421-2427 ◽  
Author(s):  
Joachim A. Hornung ◽  
Christoph Brase ◽  
Alessandro Bozzato ◽  
Johannes Zenk ◽  
Heinrich Iro

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P155-P155
Author(s):  
Daniel F A'Wengen

Objectives Learn about possible differences of results by 4 different stapes prostheses. Methods In this retrospective study, all 126 contiguous patients undergoing stapes surgery for otosclerosis are included. All surgeries were performed by 2 surgeons. 4 different types of stapes prostheses were used in separate time intervals. Starting with teflon-platinum wire prosthesis, to gold piston, to titanium piston, to the self-retaining titanium Clip-piston. Results Pre- and postoperative pure tone and speech audiograms are compared. The best results were achieved by the Clip-Piston. Improvement in PTA over other pistons was 4 dB with p= 0,027 (Mann-Whitney). Bone conduction levels were better by 2 dB. In speech audiometry intellegibility was better by 3 dB with p=0,024 (Mann-Whitney). Conclusions The tight self-fixation of the Clip-Piston to the long process of the incus achieved the best results in pure tone and even more so in speech audiometry. The reason might be due to reduced slippage of the stapes prosthesis at the attachment to the incus. As other studies have shown, tight fixation of a stapes prosthesis provides the best results. The Clip-Piston achieves this by its spring action and without the danger of heat and strangulation as by other stapes pistons.


1969 ◽  
Vol 2 (1) ◽  
pp. 131-139
Author(s):  
Frederick R. Guilford
Keyword(s):  

2015 ◽  
Vol 4 (2) ◽  
pp. 81-85
Author(s):  
Department of Periodontics ◽  
University of Nevada at Las Vegas School of Dental Medicine ◽  
Las Vegas ◽  
USA
Keyword(s):  

2021 ◽  
pp. 019459982199066
Author(s):  
Sandra Ho ◽  
Prayag Patel ◽  
Daniel Ballard ◽  
Richard Rosenfeld ◽  
Sujana Chandrasekhar

Objective To systematically review the current literature regarding the operative outcomes of stapes surgery for stapes fixation via the endoscopic and microscopic approaches. Data Sources PubMed, Embase, and Web of Science. Review Methods An electronic search was conducted with the keywords “endoscop* or microscop*” and “stapes surgery or stapedectomy or stapedotomy or otosclerosis or stapes fixation.” Studies were included if they compared endoscopy with microscopy for stapes surgery performed for stapes fixation and evaluated hearing outcomes and postoperative complications. Articles focusing on stapes surgery other than for stapes fixation were excluded. Results The database search yielded 1317 studies; 12 remained after dual-investigator screening for quantitative analysis. The mean MINORS score was 18 of 24, indicating a low risk of bias. A meta-analysis demonstrated no statistically significant difference between the groups with regard to operative time, chorda tympani nerve manipulation or sacrifice, or postoperative vertigo. There was a 2.6-dB mean improvement in the change in air-bone gap in favor of endoscopic stapes surgery and a 15.2% increased incidence in postoperative dysgeusia in the microscopic group, but the studies are heterogeneous. Conclusions Endoscopic stapes surgery appears to be a reasonable alternative to microscopic stapes surgery, with similar operative times, complications, and hearing outcomes. Superior visibility with the endoscope was consistently reported in all the studies. Future studies should have standardized methods of reporting visibility, hearing outcomes, and postoperative complications to truly establish if endoscopic stapes surgery is equivalent or superior to microscopic stapes surgery.


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