[Relationships between the coronal suture and the sulci of the lateral convexity of the frontal lobe: neurosurgical applications]

An anatomical study of the relationships between the coronal suture and the sulci of the convexity of the frontal lobe was accomplished in seven cephalic segments. The pre-central and central sulci are, respectively, 26,5 mm and 40,5 mm behind the bregma and 15,0 mm and 35,5 mm behind the pterion. The use of the coronal suture as point of reference, and especially, its relationship with the sulci of the lateral surface of the frontal lobe, allows to determine the projection on the cranium of the superficial cerebral lesions with the purpose to delimit the surgical access and to guide the approach to the cerebral convexity.

[Cranioencephalic relationships between Trolard and Labbé veins: neurosurgical applications]

We accomplished an anatomic study of the anastomotic veins of Trolard and Labbé in seven human cephalic segments with the objective to accurate its stretch and references to facilitate its preservation during surgical procedure. The relationship between the Trolard vein and motor cortex was also studied.

[The sulci and gyri localization of the brain superolateral surface in computed tomography and magnetic resonance imaging]

The knowledge of the superolateral surface brain anatomy is fundamental to localize and to approach the cerebral lesions. A literature review of the signs and landmarks for the identification of its sulci and gyri in computed tomography and magnetic resonance imaging had been done. The combined use of these several signs makes possible the sulci and gyri identification and its cerebral lesions localization in almost all cases.

Broca and the beginning of modern neurosurgery

The study presents Broca's pioneering efforts on cerebral localizations and craniotopography and their application on the first craniotomy based on cerebral localization.

[U-shaped chisel to cut the orbital roof: technical note]

We describe a new U-shaped chisel whose cutting edge allows for a precise and safer cutting of the orbital roof in the frontoorbital approach.

[Subdural effusions in children. Pathophysiology and treatment]

Nine children harboring subdural effusions were treated by subduro peritoneal shunt. These patients were followed-up by CT scans. The area of the subdural effusions was measured by quantitative morphology with a planimeter. With the surgical treatment, the subdural effusion disappeared completely or near completely in 8 patients. The patient's functional state were excellent in 4, good in 3 and bad in 2 in the postoperative follow-up. We aldo reviewed the literature as far as the pathophysiology and the treatment of the subdural effusions are concerned.