[Application of mucoperiosteal flap of nasal septum and inferior nasal meatus to repair the anterior skull base defect].

OBJECTIVE

To investigate the neoplasia of cerebrospinal rhinorrhea (CSR) by making use of mucoperiosteal flap of nasal septum and inferior nasal meatus.

METHOD: A retrospective study was reviewed in 9 patients with tumors in nasal cavity and nasal sinuses and in 1 patient with spontaneous cerebrospinal rhinorrhea. Anterior skull base defects were repaired synchronously on the heels of resection of the tumors which damaged anterior basis crania except for 1 patient with spontaneous cerebrospinal rhinorrhea which was restored directly.

RESULT: Among the 10 patients there were 5 patients with the destruction on ethmoidal horizontal plate, 2 patients with the destruction on hanging wall of ethmoid, 2 patients with the destruction on hanging wall of fossa orbitalis, 1 patient with the destruction on ethmoidal horizontal plate and on hanging wall of sphenoidal sinus simultaneously and all the destructions were repaired following detection of it synchronously.

CONCLUSION

During the operation of tumors in nasal cavity and/or nasal sinuses when anterior skull base defect is found and the CSR occurs we can take advantage of mucoperiosteal flap of nasal septum and inferior nasal meatus to perform the transplantation of mucoperiosteal flap in order to avoid forming cerebrospinal rhinorrhea.