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Coronal approach

Subperiosteal Exposure of the orbits and upper midface

The medial orbital wall can be exposed leaving the medial canthal tendon apparatus intact.
When the periorbital dissection is continued further posteriorly towards the midorbit and apex, the anterior and posterior ethmoidal arteries are encountered along the frontoethmoidal suture.
The ethmoidal arteries are covered with the periorbita like a tent adherent to the foramina as demonstrated in anatomic and clinical example.