Skull Base 2007; 17(1): 059-072
DOI: 10.1055/s-2006-959336
Copyright © 2007 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

Reconstruction of Skull Base and Fronto-orbital Defects following Tumor Resection

Kurt Laedrach1 , Anton Lukes2 , Joram Raveh1
  • 1Department of Craniomaxillofacial, Skull Base, Facial Plastic, and Reconstructive Surgery, University of Bern, Switzerland
  • 2Department of Neurosurgery, University of Bern, Switzerland
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Publication History

Publication Date:
12 January 2007 (online)

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ABSTRACT

Reconstruction of the anterior skull base and fronto-orbital framework following extensive tumor resection is both challenging and controversial. Dural defects are covered with multiple sheets of fascia lata that provide sufficient support and avoid herniation. Plating along the skull base is contraindicated. After resection of orbital walls, grafting is necessary if the periosteum or parts of the periorbital tissue had to be removed, to avoid enophthalmus or strabism. Free bone grafts exposed to the sinonasal or pharyngeal cavity are vulnerable to infection or necrosis: therefore, covering the grafts with vascularized tissue, such as the Bichat fat-pad or pedicled temporalis flaps, should reduce these complications. Alloplastic materials are indispensable in cranial defects, whereas microsurgical free tissue transfer is indicated in cases of orbital exenteration and skin defects. The authors review their experience and follow-up of 122 skull base reconstructions following extensive subcranial tumor resection. Most significant complications were pneumocranium in 4.9%, CSF leaks in 3.2%, and partial bone resorption in 8.1%.