Abstract
Introduction Microvascular free flaps offer an alternative to local and regional flaps for coverage
of complex or large skull base defects. Routes and approaches to these reconstructive
options are complicated and require an understanding of complex head and neck anatomy.
Methods A systematic review of the literature was performed using a set of search terms with
the help of a qualified librarian. Articles were reviewed and selected for inclusion
based on relevance. We were interested in reporting possible routes for free flap
accessibility to the skull base as well as microvascular vessel options, as this choice
may affect the geometry and accessibility to the defect.
Results A total of 1,917 articles were obtained from a comprehensive search and 11 articles
were ultimately found to be relevant to this review. Published options for vessel
anastomosis and corridors to the skull base following endoscopic endonasal surgery
are reviewed, including Caldwell-Luc/transbuccal space, prevertebral space, transpterygoid/parapharyngeal,
and transmaxillary approaches.
Conclusion The field of endoscopic surgery has continued to advance and provide options for
tumors of the skull base. This has led to a need for creative routes to the skull
base for free flap reconstruction.
Keywords
endoscopic - skull base - free flap - reconstruction
