surgical anatomy of temporal bone dr zeeshan ent lucknow

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Dr ZEESHAN AHMAD

SR (Neuro-otology)

Department of Neurosurgery

SGPGIMS, Lucknow

Outline

Surface landmarks

Macevens triangle

Cortical

Facial nerve surgery, endolymphatic sac

decompression, cochlear implant, trautmans

triangle, labyrinthectomy, IAM vestibular

neurectomy,

Ifracochlear

Infralabyrinthine

Precochlear – 3.5mm

Cochlea

Tegmen

ICA

Infratemporal fossa approach

Translabyrinthine (canal wall-up)

Transcochlear

Transotic

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