Use of modified pericranial flaps in anterior skull base reconstruction: technical note.

Proper reconstruction of the cranial base is imperative in preventing cerebrospinal fluid leakage and in the protection of vascular elements. Living pericranial flaps are often key elements in such reconstruction; however, trauma, previous surgery, or pathologic involvement can result in the loss of important parts of the pericranium. Techniques for utilizing pericranial flaps despite defects in the pericranium are described and case examples are given to illustrate these techniques.