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Coronal approach

Elevation of the pericranial flap

Sharp square periosteal elevators are then used to elevate the pericranial flap. The pericranium adheres loosely and can be raised easily over the parietal and most of the frontal bone. In a transverse band about 2.5 cm wide above the orbital rims however, the pericranium is densely connected to the underlying bone and care must be taken to avoid tissue tearing during the exposure of supraorbital region.