Comparative Study between Piezosurgery and Conventional Surgical Method in the Treatment of Otosclerosis

Abstract

Aim: This work aimed to compare Piezosurgery stapedotomy with the conventional approach in the management
of otosclerosis in terms of intraoperative time, postoperative complications, and air-bone gap improvement.
Methods: This randomized controlled clinical trial was conducted in Beni-Suef University hospital from August
2021 to June 2022 according to the ethical considerations of the local institutional review board. It included 40
patients suffering from hearing loss due to otosclerosis, diagnosed based on clinical features, audiometry and
impedancemetry. Patients were randomly divided into two groups: group P underwent stapedotomy by the
Piezosurgery medical device, and group C underwent stapedotomy by the conventional method.
Results: Both groups were matched regarding their baseline characteristics. The air bone gap (ABG) postoperatively
reached a mean of 7.7±6.7 dB (median=6) in group P and 7.6±6.8 (median=7) dB in group C, with no significant
difference. The percentage of reduction of A-B gap was 76.21%±17.6% in group P (Piezosurgery), while group C
(conventional) was 75.8% ±18.7%, with no significant difference. The operative time in group P was (35.5± 4.5)
minutes vs (29.7 ±3.2) minutes in group C, with a significant difference. Regarding the complication, there was no
significant difference between Piezosurgery and conventional surgery regarding intraoperative and postoperative
complications (P-value > 0.05).
Conclusion: This work concluded no difference between conventional techniques and Piezosurgery in (ABG)
reduction postoperatively, intraoperative, and postoperative complications, only surgical time was longer in
Piezosurgery group and was statistically significant.