Is one of these two techniques: CO laser versus microdrill assisted stapedotomy results in better post-operative hearing outcome?

Objective: To evaluate hearing results and outcome using two different surgical techniques (microdrill and CO Laser fenestration) in the treatment of conductive hearing loss in patients with otosclerosis.

Study Design: Retrospective audiometric database and chart review from January 2005 until December 2016.

Setting: Two tertiary referral hospitals MATERIALS AND METHODS: Seven-hundred forty-two primary stapedotomy have been reviewed retrospectively in two referral hospitals.