1. Safety and performance of the new med-el total ossicular replacement prostheses.
- Author
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Schimanski, Esther, Lenarz, Thomas, Busch, Susan, Arndt, Susan, Offergeld, Christian, Arnoldner, Christoph, Riss, Dominik, Hornung, Joachim, Taha, Lava, Zwittag, Paul Martin, Rubicz, Nina, Beutner, Dirk, Bevis, Nicholas, Loader, Benjamin, Windisch, Franz, Sprinzl, Georg, Magele, Astrid, Wolfram, Wendelin, Niederwanger, Lisa, and Plichta, Łukasz
- Subjects
MIDDLE ear ,REOPERATION ,PROSTHETICS ,ADULTS ,MICROSCOPY - Abstract
Purpose: This multicentric, retrospective study provides safety and performance data of the MED-EL total ossicular replacement prostheses (TORP). Methods: Patients underwent tympanoplasty with mXACT Total Prosthesis Center, mXACT Total Prosthesis Offcenter or mXACT PRO Total Prosthesis. The clinical data were retrospectively analyzed. Follow-up examination included access to the medical record (for adverse events) of the patients, ear microscopy and pure-tone audiometry to determine the post-operative pure tone average of the frequencies 0.5, 1, 2 and 3 kHz (PTA
4 ). The post-operative PTA4 air bone gap (ABG) was used to evaluate the audiological outcome. A post-operative minimum and maximum follow-up period was not defined. Results: 103 patients were implanted with a TORP. 102 (88 adults, 14 children; 37 CHL, 64 MHL, 1 not specified) patients were analyzed for safety and 92 (79 adults, 13 children) patients for performance of the prostheses. Adverse events results (N = 102): In 1 patient (child, mXACT Total Prosthesis Offcenter) a prosthesis dislocation was reported, which lead to a revision surgery. No prosthesis extrusion or migration was reported. Audiological results (N = 92): 49 (53.3%) of the 92 patients had a PTA4 ABG of ≤ 20 dB and therefore a successful rehabilitation. The mean post-operative PTA4 ABG of all 92 patients was 21.0 ± 9.7 dB. The first endpoint, improvement in post-operative PTA4 ABG of ≤ 20 dB by ≥ 25% of the patients was achieved. The individual Δ BC PTA4 (post-operative minus pre-operative BC PTA4 ) thresholds were stable (within ± 5 dB HL) in 91 (98.9%) patients. 1 patient had a BC PTA4 deterioration of 11.3 dB HL. Conclusion: The MED-EL TORPs are safe and effective for middle ear reconstruction. Trial registration number NCT05565339, September 09, 2022, retrospectively registered. [ABSTRACT FROM AUTHOR]- Published
- 2024
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