Low Complication Rates of Cranial and Craniofacial Approaches to Midline Anterior Skull Base Lesions

James T. Kryzanski; Donald J. Annino; Harsha Gopal; Carl B. Heilman

doi:10.1055/s-2007-1003924

Skull Base, Table of Contents

Skull Base 2008; 18(4): 229-241
DOI: 10.1055/s-2007-1003924

ORIGINAL ARTICLE

Low Complication Rates of Cranial and Craniofacial Approaches to Midline Anterior Skull Base Lesions

James T. Kryzanski¹ , Donald J. Annino² Jr. , Harsha Gopal³ , Carl B. Heilman¹

¹Department of Neurosurgery, Tufts New England Medical Center, Boston, Massachusetts
²Department of Otorhinolaryngology, Brigham and Women's Hospital, Boston, Massachusetts
³Division of Otolaryngology, Beth Israel-Deaconess Medical Center, Chestnut Hill, Massachusetts

Abstract

ABSTRACT

Objective: Surgery is a cornerstone of treatment for a wide variety of neoplastic, congenital, traumatic, and inflammatory lesions involving the midline anterior skull base and may result in a significant anterior skull base defect requiring reconstruction. This study is a retrospective analysis of the reconstruction techniques and complications seen in a series of 58 consecutive patients with midline anterior skull base pathology treated with craniotomy or a craniofacial approach. The complication rates in this series are compared with other retrospective series and specific techniques that may reduce complications are then discussed. Design: This is a retrospective analysis of 58 consecutive patients who had surgery for a midline anterior skull base lesion between January 1994 and July 2003. Data were collected regarding pathology, surgical approach, reconstruction technique, and complications. Results: Twenty-nine patients underwent surgery for a meningioma (50%). The remainder had frontoethmoidal cancer, mucoceles/invasive nasal polyps, encephalocele, esthesioneuroblastoma, anterior falx dermoid cyst with a nasal sinus tract, or invasive pituitary adenoma. In most patients, a low and narrow two-piece biorbitofrontal craniotomy was used. When possible, the dura was repaired before entering the nasal cavity. Thirteen patients experienced a complication (22%). There was one case of postoperative cerebrospinal fluid (CSF) leak (2%), one case of meningitis (2%), two cases of bone flap infection (3%), and two cases of symptomatic pneumocephalus (3%). There were no deaths, no reoperations for CSF leak, and no patient had a new permanent neurologic deficit other than anosmia. Conclusions: Transcranial approaches for midline anterior skull base lesions can be performed safely with a low incidence of postoperative CSF leak, meningitis, bone flap infection, and symptomatic pneumocephalus. Our results, particularly with regard to CSF leakage, compare favorably with other retrospective series.

KEYWORDS

Anterior skull base - cerebrospinal fluid leak - complications - craniofacial approach - meningioma - skull base surgery

Full Text

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James T KryzanskiM.D.

Department of Neurosurgery, Tufts New England Medical Center

750 Washington Street, Boston, MA 02111

Email: jkryzanski@tufts-nemc.org