International Journal of Anatomy and Research



Welcome to International Journal of Anatomy and Research

b2



b3

 

 

Type of Article : Original

Year: 2015 | Volume 3 | Issue 1 | Page No. 917-921

Date of Publication: 31-03-2015

DOI: http://dx.doi.org/10.16965/ijar.2015.114


A COMPUTERIZED TOMOGRAPHIC STUDY OF UNCINATE PROCESS OF ETHMOID BONE

N. Vinay Kumar *1, E. Kamala 2, T.S. Guga Priya 3, S. D. NalinaKumari 4.

*1 Assistant professor, Department of Anatomy, Chennai Medical College Hospital and Research Centre, Trichy, Tamilnadu, India.
2Assistant professor, Department of Anatomy, Chennai Medical College Hospital and Research Centre, Trichy, Tamilnadu, India.
3 Associate professor, Department of Anatomy, Chennai Medical College Hospital and Research Centre, Trichy, Tamilnadu, India.
4 Professor and Head, Department of Anatomy, Chennai Medical College Hospital and Research Centre, Trichy, Tamilnadu, India.

Address: Dr. N. Vinay Kumar, Assistant Professor, Department of Anatomy, Chennai Medical College Hospital and Research Centre, Irungalur, Trichy 621105, Tamilnadu, India.
E-Mail: vinaydr1981@gmail.com

Abstract

Background: The uncinate process is an important landmark in the anatomy of osteo-meatal complex of frontal recess which also plays a vital role in the ventilation of middle meatus and sinuses. Its superior attachment shows great anatomic variability. The aim of this study was to observe and classify superior attachment and presence of pneumatisation in uncinate process.
Materials and methods: Computed tomographic images of paranasal region from 100 patients were studied retrospectively. In 100 patients, 54 belonged to male and 46 female and were in the age group of 11 to 75 years with an average of 32.7 years. The superior attachment of uncinate process was observed and tabulated according to Landsberg and Friedman classification and pneumatisation of uncinate process was also noted. The results were analysed statistically.
Results: The superior attachment of uncinate process was observed in 200 sides out of 100 patients and its attachment to the agger nasi cells (type - 2) was found in 36% while its attachment to lamina papyracea (type – 1) and to middle turbinate (type – 6) were found in 19% and 20% respectively. Uncinate process ending at the junction of middle turbinate with cribriform plate (type – 4), at the ethmoid skull base (type – 5), bifurcating towards lamina papyracea and junction of middle turbinate with cribriform plate (type – 3) were seen in 2%, 8% and 5% respectively. In 11%, the superior end showed no attachment to surrounding structures. The uncinate process was pneumatised in 34 of 200 sides (17%), among which 45.5% was unilateral and 54.5% bilateral.
Conclusion: Preoperatively evaluating variations of uncinate process and its pneumatisation helps to avoid intraoperative damage to surrounding structures. The detailed knowledge of extent of uncinate process may also help to deduce the reason for refractory chronic sinusitis.
KEY WORDS: Uncinate process, Osteomeatal complex, Pneumatisation, Chronic rhinosinusitis, Paranasal sinuses.

References

  1. Anita Aramani, R.N.Karadi, Saurabh Kumar. A Study of Anatomical Variations of Osteomeatal Complex in Chronic Rhinosinusitis Patients-Ct Findings.2014;8(10):KC01 - KC04
  2. Soames RW. Skeletal system. In Williams PL(Ed.), Grays's anatomy. 38th edn. Edinburg: churchill livingstone.597
  3. Landsberg R, Friedman M. A computer-assisted anatomical study of the nasofrontal region. Laryngoscope. 2001;111:2125-2130
  4. Gupta, A. K., Bansal, S., & Sahini, D. Anatomy and its variations for endoscopic sinus surgery. Clin Rhinol An Int J. 2012; 5: 55-62.
  5. Bolger WE, Woodruff W, Parsons DS.CT demonstration of pneumatization of the uncinate process.Am J Neuroradiol.1990;11(3):552
  6. Groves J. and Gray R. F. [1995] : Applied physiology of the nose and paranasal sinuses. In a Synopsis of otolaryngology. 4th edition IGrooves J., Gray R. F., eds] John Wright and Sons, Bristol, pp 167-168.
  7. D. R. Nayak, R. Balakrishnan, K. Deepak Murty.Functional anatomy of the uncinate process and its role in endoscopic sinus surgery. Indian J Otolaryngol Head Neck Surg. Jan 2001; 53(1): 27–31.
  8. Turgut S, Ercan I, Sayin I, Başak M.The relationship between frontal sinusitis and localization of the frontal sinus outflow tract: a computer-assisted anatomical and clinical study.Arch Otolaryngol Head Neck Surg. 2005 Jun;131(6):518-22.
  9. Tuli IP, Subhabrata sengupta, Sudeep Munjal,Santosh Prasad Kesari, Suvamoy Chakraborty. Anatomic  Variations of Uncinate rocess Observed in Chronic Sinusitis. Indian J Otolaryngol Head Neck Surg.DOI 10.1007/s12070-012-0612-8
  10. Krzeski A, Tomaszewska E, Jakubczyk I, Galewicz-Zielinska A (2001) Anatomic variations of the lateral nasal wall in the computed tomography scans of patients with chronic rhinosinusitis. Am J Rhinol 15(6):371–375
  11. Min Y, Koh T, Rhee C, Han M. Clinical implications of the Uncinate process in paranasal sinusitis: radiological evaluation. Am J Rhinol.1995; 9(3):131-135
  12. Arslan H, Aydinlioglu A, Bozkurt M, Egeli E (1999) Anatomic variations of the paranasal sinuses: CT examination for endoscopic sinus surgery. Auris Nasus Larynx 26(1):39–48.
  13. Shambaugh GE. The construction of the ethmoid labyrinth. Ann Otol Rhino/Laryngo/1907;16:771-775
  14. Bolger WE, Butzin CA, Parsons DS. Paranasal sinus bony anatomic variations and mucosal abnormalities: CT analysis for endoscopic sinus surgery. Laryngoscope 1991; 101:56-64.
  15. Zinreich SJ, Kennedy DW, Rosenbaum AE, Gayler BW, Kumar AJ, Stammberger H. Paranasal sinuses: CT imaging requirements for endoscopic surgery. Radiology 1987; 163: 769-775.
  16. Stammberger H. Secretion transport. In: Functional endoscopic sinus surgery. Philadelphia: BC Decker, 1991: 17-46.
  17. Kopp W, Stammberger H, Fotter R. Special radiologic image of the paranasal sinuses. Eur J Radiol 1988; 8:152-156.

 

N. Vinay Kumar, E. Kamala, T. S. Guga Priya, S. D. NalinaKumari. A COMPUTERIZED TOMOGRAPHIC STUDY OF UNCINATE PROCESS OF ETHMOID BONE. Int J Anat Res 2015;3(1):917-921. DOI: 10.16965/ijar.2015.114

b2



b3




Search

Volume 1 (2013)

Volume 2 (2014)

Volume 3 (2015)

Submit Manuscript