<prompt> Iatrogenic traumatic facial nerve palsy is MOST commonly produced during which of the following surgical procedure?MyringoplastyStapedectomyMastoidectomyOssiculoplasty  <response>: Iatrogenic facial nerve trauma most often occurs during mastoidectomy. When injury occur to more than 50 of the neural diameter either primary reanastomosis or reconstruction using a nerve graft is done. Complications of mastoidectomy includes: Infection Labrynthitis ossificans Mucosalization of the middle ear Facial nerve injury CSF leak Encephalocele 