In most cases of frontal sinus disease, endoscopic approaches are favored; however, in some situations where an endoscopic approach is insufficient, an “above and below” approach may be suitable, serving as an alternative to more invasive procedures.
CITATION STYLE
Patel, A. M., & Vaughan, W. C. (2016). “Above and below” FESS: Simple trephine with endoscopic sinus surgery. In The Frontal Sinus, Second Edition (pp. 325–335). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-48523-1_24
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