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BMC Ear, Nose and Throat Disorders
Published in: BMC Ear, Nose and Throat Disorders 1/2018

Open Access 01-12-2018 | Research article

Is orbital floor a reliable and useful surgical landmark in endoscopic endonasal surgery?: a systematic review

Authors: Baharudin Abdullah, Chew Shiun Chuen, Salina Husain, Kornkiat Snidvongs, De Yun Wang

Published in: BMC Ear, Nose and Throat Disorders | Issue 1/2018

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Abstract

Background

The orbital floor is considered as an important intraoperative reference point in endoscopic sinonasal surgery. The aim of this review is to evaluate its reliability and usefulness as a surgical landmark in endoscopic endonasal surgery.

Methods

A literature search was performed on electronic databases, namely PUBMED. The following keywords were used either individually or in combination: orbital floor; maxillary sinus roof; endoscopic skull base surgery; endoscopic sinus surgery. Studies that used orbital floor as a landmark for endoscopic endonasal surgery were included in the analysis. In addition, relevant articles were identified from the references of articles that had been retrieved. The search was conducted over a period of 6 months between 1st June 2017 and 16th December 2017.

Results

One thousand seven hundred forty-three articles were retrieved from the electronic databases. Only 5 articles that met the review criteria were selected. Five studies of the orbital floor (or the maxillary sinus roof) were reviewed, one was a cadaveric study while another 4 were computed tomographic study of the paranasal sinuses. All studies were of level III evidence and consists of a total number of 948 nostrils. All studies showed the orbital floor was below the anterior skull base irrespective of the populations. The orbital floor serves as a guide for safe entry into posterior ethmoids and sphenoid sinus.

Conclusions

The orbital floor is a reliable and useful surgical landmark in endoscopic endonasal surgery. In revision cases or advanced disease, the normal landmarks can be distorted or absent and the orbital floor serves as a reference point for surgeons to avoid any unintentional injury to the skull base, the internal carotid artery and other critical structures.
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Metadata
Title
Is orbital floor a reliable and useful surgical landmark in endoscopic endonasal surgery?: a systematic review
Authors
Baharudin Abdullah
Chew Shiun Chuen
Salina Husain
Kornkiat Snidvongs
De Yun Wang
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Ear, Nose and Throat Disorders / Issue 1/2018
Electronic ISSN: 1472-6815
DOI
https://doi.org/10.1186/s12901-018-0060-5

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