Frontal Recess Anatomy – Radiological study and its surgical implications.

Saud, Ahmed (2014) Frontal Recess Anatomy – Radiological study and its surgical implications. Masters thesis, Christian Medical College, Vellore.


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OBJECTIVES: Utilize 3- Dimensional CT scan : 1. To determine the role of various frontal recess cells in the development of frontal sinusitis. 2. To find the variations in the course of the anterior ethmoidal artery, and 3. Review the endoscopic surgical approaches to the frontal recess. METHODS: It was a retrospective and prospective case control study. Fifty controls and fifty cases were studied. Controls - Patients who had axial CT scan of temporal bone performed for ear diseases with absence of sinonasal symptoms. 3-D reconstructed images of the frontal recess region were created on a workstation and were reviewed. Cases - Patients’ clinically diagnosed with chronic frontal sinusitis with frontal sinus mucosal thickening > 3 mm on CT scan. The frontal sinuses (200) were further divided into diseased and non-diseased based on the radiological findings and compared. The findings were documented and analysed using Stata/IC 10.1 software package. Student ‘T’ test was used to compare the means and Chi-square statistics was used to test the association between the variables. Wilcoxon rank-sum (Mann-Whitney) test was done to see the difference between two groups when the data was not normally distributed. RESULTS: In this study, we could outline the various patterns of pneumatization in the frontal recess in our patients using 3- Dimensional Computerised Tomography. We did not find a significant relation for any particular frontal recess cell or pneumatisation pattern for being the sole cause for chronic frontal sinusitis. Therefore we conclude that the pneumatisation pattern in combination with various other factors, especially mucosal oedema, contributed to the etiopathogenesis of chronic frontal sinusitis. The anterior ethmoidal artery was found to run freely in the ethmoids, away from the skull base in most of the patients.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Frontal recess anatomy; Multiplanar study; computerised tomography
Subjects: MEDICAL > Otolaryngology
Depositing User: Devi S
Date Deposited: 13 Jul 2017 10:33
Last Modified: 13 Jul 2017 10:33

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