Surgical management of petrous bone cholesteatoma and facial nerve protection

Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery
W GaoD J Zha

Abstract

Objective: To discuss the therapeutic scheme of petrous bone cholesteatoma(PBC) and the technique of facial nerve reconstruction. Method: The data of 28 patients who underwent surgery for PBC in our center were analyzed retrospectively. All patients were diagnosed radiologically with PBCs and reconfirmed pathologically after surgery. The surgical approach was discussed basing Sanna's classification of PBCs, and the facial nerve outcomes were analyzed moreover. Result: PBC cases 11 were supralabyrinthine, 4 infralabyrinthine, 3 infralabyrinthine-apical, 10 massive and none apical. The facial nerve was involved in 50% of the cases. The translabyrinthine approach were used in 3 cases. The transotic approach was used in 7 cases in this series.The transcochlear approach type was applied in 12 cases. The Infratemporal fossa type B approach and subtotal petrosectomy were employed in 2 cases and 4 cases respectively. Active management of the nerve(rerouting, anastomosis, or grafting) was required in 14 cases, postoperative facial nerve function were inproved in 10 cases(71.43%). Conclusion: The appropriate surgery approach was vitally important to radical disease clearance in PBCs. The facial nerve preservation was preceded hearing pre...Continue Reading

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