Related Experiment Video
Updated: Aug 9, 2026
Step-by-Step Stapedotomy through Transcanal Exclusive Endoscopic Approach
Published on: March 5, 2022
[Cochlear protection and surgical precision in stapedotomy with Er:YAG laser]
W Maier1, P U Lohnstein, T Klenzner
1Klinik für Hals-, Nasen- und Ohren-Heilkunde, Universitätsklinikum Freiburg i. Br. maier@hno1.ukl.uni-freiburg.de
Background:
Using laser in stapedotomy has attracted a lot of attention since the nineties. It aims at minimizing complications due to hand-operated equipment, especially inner ear lesions, and achieving higher precision. We analyzed the clinical effect of Er:YAG laser with the question whether the postulated cochlea protection and foot plate perforation, optimized for better sound conduction, are achieved, compared to conventional stapedotomy.
Patients And Methods:
We evaluated retrospectively audiometrical data including pre- and postoperative bone and air conduction thresholds of 114 consecutive patients, on whom we had performed stapedotomy and had inserted platinum-teflon prostheses. The intervention was done conventionally in 72 cases and in 42 cases with Er:YAG laser.
Results:
In the lower and middle frequencies, laser technique resulted in a more pronounced improvement of bone conduction thresholds compared to conventional stapedotomy. The improvement of air conduction was more distinct in ears after laser surgery; also, the difference between air and bone conduction was reduced at a higher degree.
Conclusion:
Er:YAG laser in stapedotomy is coupled with cochlea protection, as demonstrated under clinical conditions, and allows higher hearing benefit of air conduction compared to conventional stapedotomy. Our results emphasize the impact of innovative laser technique on stapedotomy.
