Microsurgical anatomy of the orbit: the rule of seven.

Anatomy Research International
Carolina MartinsA L Rhoton

Abstract

The orbits are paired structures, located on the anterior part of the face. Morphologically, each orbit is a four sided pyramid with a posterior apex and anterior base. In the orbit, all openings are arranged around the base, apex or between the orbital walls. An anatomical characteristic of the orbit is that structures are arranged in groups of seven: there are seven bones, seven intraorbital muscles and seven nerves in the orbit. Tumors confined within the periorbita in the anterior two thirds of the orbit can often be approached extracranially, but those located in the apical area, and especially those on the medial side of the optic nerve, often require a transcranial approach. Thus, knowledge of orbital osteology is paramount in adequately choosing and performing an orbital approach. Understanding the critical topographical elements in this area helps to classify an orbital lesion and provides for a solid basis in choosing the most adequate intraorbital route for its treatment.

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Citations

Nov 13, 2013·Seminars in Ultrasound, CT, and MR·Philip R ChapmanPaul Gohlke
Dec 11, 2013·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Wonil JooAlbert L Rhoton
Jun 24, 2015·World Neurosurgery·Leonidas M Quintana
May 11, 2015·World Neurosurgery·Mohammed M Adawi, Abdelaal M Abdelbaky
Jan 6, 2019·Journal of Neurosurgery·Ali Tayebi MeybodiMark C Preul
Nov 1, 2020·Surgical and Radiologic Anatomy : SRA·Ӧ EnginP Saeed
Dec 11, 2020·Plastic and Reconstructive Surgery. Global Open·Ayumi TsukamotoToshihiko Satake
Jan 22, 2021·Vestnik otorinolaringologii·Y O GrushaV Y Spychak

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