An Unusual Variant of the Sphenopalatine Foramen and Artery with an Absent Crista Ethmoidalis: An Intra-Operative Challenge
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چکیده
Sphenopalatine artery ligation (SPL) is a surgical remedy for severe epistaxis. This procedure requires extensive knowledge of the various anatomical variants. Its topographical anatomy varies and reliable landmark such as the crista ethmoidalis may be absent. These variations are crucial and they dictate the outcome of the surgery. We present a peculiar case of a postero-superiorly located variant of the sphenopalatine foramen and artery with an absent crista ethmoidalis. The sphenopalatine foramen was found superiorly at the superior meatus beyond the horizontal part of the lamella of the superior concha. Only one trunk was seen exiting the sphenopalatine foramen. The sphenopalatine foramen was measured
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Mapping surgical coordinates of the sphenopalatine foramen: surgical navigation study.
OBJECTIVES To identify measurements that may help intra-operative localisation of the sphenopalatine foramen. DESIGN The study used three-dimensional surgical navigation software to study radiological anatomy, in order to define the distances and angulations between identifiable bony landmarks and the sphenopalatine foramen. RESULTS The distance from the anterior nasal spine to the sphenopa...
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