[Mid-posterior approach into the spinal cord].
D000328:Adult; D001254:Astrocytoma / Q000601:surgery; D002818:Cordotomy / Q000379:methods*; D005260:Female; D005910:Glioma / Q000601:surgery; D006391:Hemangioma / Q000601:surgery; D006801:Humans; D008297:Male; D011187:Posture; D013116:Spinal Cord / Q000033:anatomy & histology; D013120:Spinal Cord Neoplasms / Q000601:surgery