Transfrontal intradural microsurgical decompression for traumatic optic nerve injury.
Microsurgical decompression of the optic nerve was performed in 22 patients with traumatic optic nerve injury through a transfrontal intradural approach. When significant improvement is defined as an improvement of the visual acuity of 0.1 or more, 11 patients (50%) showed significant improvement and 7 patients (32%) showed non-significant improvement. Four patients who had been blind preoperatively, did not show any improvement. In cases with a preoperative visual acuity of 0.01 or more, significant improvement was obtained in 80% of the patients, and when the preoperative visual acuity was not nill but less than 0.01, 38% of patients showed significant improvement. We conclude that a transfrontal intradural microsurgical decompression is indicated, when the preoperative visual acuity is 0.01 or more and the time lag is less than 14 days after the injury.
Waga
S
S
Department of Neurosurgery, Mie University School of Medicine and Hospital, Japan.
Kubo
Y
Y
Sakakura
M
M
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D006259:Craniocerebral Trauma / Q000150:complications* / Q000503:physiopathology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods*; D008875:Middle Aged; D020221:Optic Nerve Injuries; D014792:Visual Acuity