International Journal of Anatomy and Research

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Type of Article : Original Research

Year: 2015 | Volume 3 | Issue 3 | Page No. 1354-1361

Date of Publication: 30-09-2015



Rimpi Gupta *1, Rajan Singla 2, Gaurav Agnihotri 3, Reenu Kumari 4, Deepak Goyal 5.

*1Assistant Professor, Department of Anatomy, BPS GMC For Women, sonipat, Haryana, India.
Additional Professor, Department of Anatomy, Govt Medical College, Amritsar, Punjab, India.
3 Associate Professor, Department of Anatomy, Govt Medical College,  Amritsar, Punjab.
4 Demonstrator, Anatomy, BPS GMC For Women,  sonipat, Haryana,  India.
5 Medical officer,HCMS-1, PHC Dubheta, Sonipat, Haryana,  India.

Address: Dr. Rimpi Gupta, Assistant Professor, Department of Anatomy, BPS GMC For Women, Khanpur Kalan, sonipat, Haryana, India.


Background: The articular processes of thoracolumbar vertebral column play an important role in weight transmission and determining the range and direction of movements between any two vertebrae. Size of these facets has been correlated with the magnitude of stress imposed on them.
Purpose of study: The present study has been conducted on the articular processes of 510 vertebrae (thoracic: 360; lumbar:150) with the aim to provide high quality data sets for constructing the models of spine to study mechanics of spinal instrumentation. The length , width and the distance between the right & left superior & inferior articular processes have been measured with the vernier callipers. The presence/ absence of mamillary tubercle has been observed in the present study.
Results: The length of thoracic SAFs was almost same at all levels whereas that of the lumbar SAFs increased gradually from L1-L5. However the width showed a variable trend. In case of thoracic IAFs both these parameters showed a variable trend. Whereas in lumbar region, these increased gradually from L1-L5. The distance between two inferior articular processes was more than that between  two superior articular processes at almost all levels except T1-T3 & L1-L4 where reverse was true. The mamillary tubercle/process was altogether absent from T-1 to T-8. From T-9 to T-11, the number of vertebral   column showing mamillary tubercle increased from 4-19. However at T-12, it was seen in 29 Vertebral columns. In lumbar region, it was well developed in all vertebrae and termed as mamillary process.
Conclusion: The measurements obtained by present study reveals the importance of articular facets in understanding basic spinal mechanics and its application with respect to weight transmission.
KEY WORDS: Superior articular facet, Inferior articular facet, Mamillary process, weight transmission.


  1. Anson BJ. Morris’ Human Anatomy. In: Introduction and topographic anatomy. Davenport HA. Edr. 12th ed. McGraw Hill Book Company Toronto, New York 1966; p.38.
  2. Buchanan. A manual of Anatomy. In: The bones of trunk. 8th ed. London, Bailliere: Tindall and Cox; 1953:107-17.
  3. Sinnatamby CS. Last’ Anatomy-Regional and Applied. In: Head and Neck and Spine. 10th ed. Edinburgh: Churchill Livingstone;1999:425-7.
  4. Davis PR. The thoracolumbar mortice joint. J Anat 1955;89:370-77.
  5. Putz R. The functional morphology of the superior articular processes of the lumbar vertebrae. J Anat 1985;143:181-7.
  6. Pal GP, Routal RV and Saggu SK. The orientation of the articular facets of the zygapophyseal joint at the cervical & upper thoracic region. J Anat 2001;198:431-41.
  7. Badgley CE. The articular facets in relation to low back pain and sciatic radiation. J Bone joint Surg, 1941;23:481-496.
  8. Mooney V. The Lumbar Spine and Back Pain in Facet joint syndrome, chap 18. Third edition. Edited by MIV Jayson. New York. Churchill Livingston, 1987, pp 370-382.
  9. Shearly CN. The role of the spinal facets in back and sciatic pain. Headache, 1974July;101-4.
  10. Dhall V. Bilateral asymmetry in the area of the articular surface of human ankle joint. J Anat Soc Ind 1984;33:15-18.
  11. Goel VK, Kim YE, Weinstein JN. An analytical investigation of the mechanics of spinal instrumentation. Spine 1988;13:1003-11.
  12. Newell RLM. Back and Macroscopic Anatomy of the Spinal Cord. In: Gray’s Anatomy. Standring S, Ellis H, Healy JC, Johnson D, Williams A, Collins P et al editors. 39th ed. Edinburg. Churchill Livingstone 2005;p.746-49.
  13. Masharawi Y, Rothschild B, Salame K, Dar G, Peleg S, Hershkovitz I: Facet tropism and interfacet shape in the thoracolumbar vertebrae: Characterization and biomechanical interpretation. Spine 2005;30:281-92.
  14. Panjabi MM, Oxland T, Takata K, Goel V, Duranceau J, Krag M: Articular facets of the human spine. Quantitative three dimensional anatomy. Spine 1993;18(10):1298-1310.
  15. Patel MM, Singel TC, Gohil DV, Pandya AM. A study of osteometric measurements of articular facets from C3 to S1. J Anat Soc Ind 2007;56(1):7-18.
  16. Pal GP and Routal RV: Mechanism of change in the orientation of the articular process of the zygapophyseal joint at the thoracolumbar junction. J Anat 1999;195:199-209.
  17. Pal GP, Routal RV. Transmission of weight through the lower thoracic and lumbar region of the vertebral column in man. J Anat 1987;152:93-105.
  18. Cihak R. Variations of lumbosacral joints and their morphogenesis. Acta Universitaties Carolinae Medica 1970;16:370-7.


Rimpi Gupta, Rajan Singla, Gaurav Agnihotri, Reenu Kumari, Deepak Goyal. MORPHOMETRIC AND MORPHOLOGICAL STUDY OF ARTICULAR FACETS OF THE THORACOLUMBAR VERTEBRAL COLUMN IN NORTH INDIAN POPULATION. Int J Anat Res 2015;3(3):1354-1361. DOI: 10.16965/ijar.2015.236




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