[Decompression of geniculate ganglion of facial nerve]

Decompression of geniculate ganglion of facial nerve in 20 cases of facial palsy caused by temporal bone fracture, herpes zoster otitic and Bell's palsy was reported. Sixteen cases had been followed up for half to four years. Complete recovery was observed in 13 cases and partial recovery in 3 cases. Transmastoid-attical approach was used. The geniculate ganglion and the distal part of the labyrinthine segment of the facial nerve could be exposed by this approach. The authors emphasized the importance of decompression of the geniculate ganglion, because of the anatomic characteristics and the pathologic features. The indications, the surgical approach and the precautions during operation were discussed.