IJAR.2018.351

Type of Article:  Original Research

Volume 6; Issue 4.1 (October 2018)

Page No.: 5830-5834

DOI: https://dx.doi.org/10.16965/ijar.2018.351

MORPHOMETRY AND MORPHOLOGY OF OCCIPITAL CONDYLE RELATED TO THE TRANSCONDYLAR APPROACH IN DRY SKULLS

Swapnali Shamkuwar *1, Varsha Mokhasi 2.

*1 Assistant Professor, Department of Anatomy, Vydehi Institute of Medical Sciences & Research Centre, Bangalore, Karnataka, India.

2 Professor & HOD, Vydehi Institute of Medical Sciences & Research Centre, Bangalore, Karnataka, India.

Correspondence Address: Dr. Swapnali Shamkuwar, A-902, Skylark Esta Apartment, Hoodi Graphite Main Road, Near Kamat Yatriniwas, Hoodi, Bangalore. 560048, Karnataka, India. Mobile no. – 8095342774 E-Mail: drswapnalis@gmail.com

ABSTRACT:

Introduction: The occipital condyles are small, bilateral inferior extensions of the occipital bones. They are intimately related to the foramen magnum and skull base by a number of ligamentous attachments. A variety of disease processes may affect the craniovertebral junction.  Various lateral approaches have been used to access these lesions. Understanding the bony anatomy and variations of occipital condyle is important for these approaches. The aim of the present study is to study occipital condyle in detail.

Materials and methods: 120 dry human skulls (83 males, 37 females) were studied. The length, width and different shapes of occipital condyle were noted. Various other parameters were measured like anterior intercondylar distance, posterior intercondylar distance, distance between anterior and posterior end of occipital condyle and opisthion.

Results: The mean value of occipital condyle length (2.32cm(M) vs 2.22cm(F)) and width (1.29cm(M) vs 1.26cm(F)) were present in male and female skulls. The anterior intercondylar distance and posterior intercondylar distances were 2.06cm and 4.14cm respectively. Shape of occipital condyle was classified into different types as following- oval, kidney, s shaped, figure of eight, two portioned and deformed. The most common shape of occipital condyle was oval on both sides in males and females.

Conclusions: Thorough knowledge of occipital condyle will enable the neurosurgeons to have safe surgery and reduce the morbidity to minimum.

Key words: Occipital Condyle, Skull, Transcondylar Approach.

REFERENCES

  1. Avci E, Dagtekin A, Ozturk AH, kara E, ozturk NC, Akture E et. al. Anatomical variations of the foramen magnum, occipital condyle and jugular tubercle. Turkish Neurosurgery 2011; 21(2):181-190.
  2. Naderi S, Korman E, Citak G, Guvencen M, Arman C, Senoglu M. Morphometric analysis of human occipital condyle. Clinical Neurology and Neurosurgery 2005; 107:191-199.
  3. Pereira GAM, Lopes PTS, Santos AMPV, Durate RD, Piva L, Pozzobon A. Morphometric analysis related to the transcondylar approach in dry skulls and computed tomography. International journal of Morphology 2012; 30(2):399-404.
  4. N Muthukumar, R Swaminathan, G Venkatesh, SP Bhanumathy. A morphometric analysis of the foramen magnum region as it relates to the transcondylar approach. Acta Neurochir2005; 147: 889–895.
  5. Matsushima T, Natori Y, Katsuta T, Ikezaki K, Fukui M, Rhoton T. Microsurgical Anatomy for Lateral Approaches to the Foramen Magnum with Special References to Transcondylar Fossa (Supracodylar Trasjugular Tubercle) Approach. Skull Base Surgery 1998; 8(3) :119-125.
  6. Ozer MA, Celik S, Govsa F, Ulusoy MO. Anatomical determination of a safe entry point for occipital condyle screw using three dimensional landmarks. Eur Spine Journal 2011; 20:1510-1517.
  7. Bayat P, Bagheri M, Ghanbari A, Raoofi A. Characterization of occipital condyle and comparison of its dimensions with head and foramena magnum circumferences in dry skulls of Iran. International journal of Morphology 2014; 32(2): 444-448.
  8. Fetouch FA, Awadalla AM. Morphometric analysis of the occipital condyle and its surgical implications in transcondylar approach. The Pan Arab Neurosurgery society
  9. Kizilkanat E. Morphometry of the hypoglossal canal, occipital condyle and foramen magnum. Neurosurgery Quarterly 2006; 16(3): 121-125.
  10. Kalthur SG, Padmashali S, Gupta C, Dsouza AS. Anatomical study of the occipital condyle and its surgical implications in transcondylar approach. Journal of craniovertebral junction spine 2014; 5(2) :71-7.
  11. Natsis K, Piagkou M, Skotsiomara G, Piagkos G, Skandalaksis PA. Morphometric anatomical and comparative study of the foramen magnum region in a Greek population. Surg Radio Anat 2013; 35(10) :925 -934.

Cite this article: Swapnali Shamkuwar, Varsha Mokhasi. MORPHOMETRY AND MORPHOLOGY OF OCCIPITAL CONDYLE RELATED TO THE TRANSCONDYLAR APPROACH IN DRY SKULLS. Int J Anat Res 2018;6(4.1):5830-5834. DOI: 10.16965/ijar.2018.351