Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography

ABSTRACT: Objective: To evaluate the olfactory fossa depth and to categorize it according to Keros classification. Methodology: It was a cross sectional study done on 270 adults , 160 males and 110 females at Ziauddin University Hospital, Clifton, Karachi using CT Para nasal sinuses. The depth of o...

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Main Authors: Mubina Lakhani, Nuzhat Hassan, Arsalan Manzoor, Muhammad Ali, Madeeha Sadiq
Format: Article
Language:English
Published: Bahria Univerisy Health Sciences, Campus Karachi 2017-06-01
Series:Journal of Bahria University Medical and Dental College
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Online Access:https://jbumdc.bahria.edu.pk/index.php/ojs/article/view/263
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author Mubina Lakhani
Nuzhat Hassan
Arsalan Manzoor
Muhammad Ali
Madeeha Sadiq
author_facet Mubina Lakhani
Nuzhat Hassan
Arsalan Manzoor
Muhammad Ali
Madeeha Sadiq
author_sort Mubina Lakhani
collection DOAJ
description ABSTRACT: Objective: To evaluate the olfactory fossa depth and to categorize it according to Keros classification. Methodology: It was a cross sectional study done on 270 adults , 160 males and 110 females at Ziauddin University Hospital, Clifton, Karachi using CT Para nasal sinuses. The depth of olfactory fossa was evaluated by measuring the height of lateral lamina of cribriform plate. Results: The mean and standard deviation(SD) of right olfactory fossa depth was greater than that of left 6.184±1.8237mm and 5.949 ±1.8003mm (p value 0.006) respectively. Mean ± (SD) for left olfactory fossa depth was greater in females (6.215±1.9271) than in males (5.766±1.6896) (p value 0.043). Keros type II was found to be the most frequent on both right and left sides that is, in 69.26% and 72.96% individuals respectively followed by type III on right side in 18.15% and on left side in 15.19% subjects. Type I was found to be the least frequent in our population with a value of 12.59% on the right side and 11.85% on the left side. Conclusion: Our study shows that most of the population falls in the high risk categories of Keros that is type II and type III thus emphasizing the need of preoperative radiological assessment.
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publisher Bahria Univerisy Health Sciences, Campus Karachi
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spelling doaj-art-561dcfd6b7384ff090a65634cc3f1dcc2025-08-20T03:13:14ZengBahria Univerisy Health Sciences, Campus KarachiJournal of Bahria University Medical and Dental College2220-75622617-94822017-06-0173Olfactory Fossa Depth Assessment Based on Keros Classification using Computed TomographyMubina LakhaniNuzhat HassanArsalan ManzoorMuhammad AliMadeeha Sadiq ABSTRACT: Objective: To evaluate the olfactory fossa depth and to categorize it according to Keros classification. Methodology: It was a cross sectional study done on 270 adults , 160 males and 110 females at Ziauddin University Hospital, Clifton, Karachi using CT Para nasal sinuses. The depth of olfactory fossa was evaluated by measuring the height of lateral lamina of cribriform plate. Results: The mean and standard deviation(SD) of right olfactory fossa depth was greater than that of left 6.184±1.8237mm and 5.949 ±1.8003mm (p value 0.006) respectively. Mean ± (SD) for left olfactory fossa depth was greater in females (6.215±1.9271) than in males (5.766±1.6896) (p value 0.043). Keros type II was found to be the most frequent on both right and left sides that is, in 69.26% and 72.96% individuals respectively followed by type III on right side in 18.15% and on left side in 15.19% subjects. Type I was found to be the least frequent in our population with a value of 12.59% on the right side and 11.85% on the left side. Conclusion: Our study shows that most of the population falls in the high risk categories of Keros that is type II and type III thus emphasizing the need of preoperative radiological assessment. https://jbumdc.bahria.edu.pk/index.php/ojs/article/view/263Keros classification, Olfactory fossa, Paranasal sinuses, Radiological assessment
spellingShingle Mubina Lakhani
Nuzhat Hassan
Arsalan Manzoor
Muhammad Ali
Madeeha Sadiq
Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography
Journal of Bahria University Medical and Dental College
Keros classification, Olfactory fossa, Paranasal sinuses, Radiological assessment
title Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography
title_full Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography
title_fullStr Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography
title_full_unstemmed Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography
title_short Olfactory Fossa Depth Assessment Based on Keros Classification using Computed Tomography
title_sort olfactory fossa depth assessment based on keros classification using computed tomography
topic Keros classification, Olfactory fossa, Paranasal sinuses, Radiological assessment
url https://jbumdc.bahria.edu.pk/index.php/ojs/article/view/263
work_keys_str_mv AT mubinalakhani olfactoryfossadepthassessmentbasedonkerosclassificationusingcomputedtomography
AT nuzhathassan olfactoryfossadepthassessmentbasedonkerosclassificationusingcomputedtomography
AT arsalanmanzoor olfactoryfossadepthassessmentbasedonkerosclassificationusingcomputedtomography
AT muhammadali olfactoryfossadepthassessmentbasedonkerosclassificationusingcomputedtomography
AT madeehasadiq olfactoryfossadepthassessmentbasedonkerosclassificationusingcomputedtomography