Type of Article:  Original Research

Volume 8; Issue 1.3 (March 2020)

Page No.: 7399-7402

DOI: https://dx.doi.org/10.16965/ijar.2020.112


Anjali Sabnis 1, Manisha Nakhate *2.

1 Professor and head, Department of Anatomy, MGM Medical College, Kamothe, Navi Mumbai, Maharashtra, India.

*2 Professor and head, Department of Anatomy, D. Y. Patil Medical College, Nerul, Navi Mumbai, Maharashtra, India.

Corresponding Author: Dr. Manisha Nakhate, Professor and head, Department of Anatomy, D. Y. Patil Medical College, Nerul, Navi Mumbai, Maharashtra, India. E-Mail: manishanakhate@yahoo.com


Sacrum is centrally located unpaired bone of pelvis which is composed of 5 sacral vertebrae. Superiorly it articulates with 5th lumbar vertebra to form lumbosacral joint and laterally it articulates with hip bone to form sacroiliac joint. When 5th lumbar vertebra fuses with 1st sacral vertebra then it is called as sacralization and when 1st sacral vertebra gets separated from sacrum then it is called as lumbarization. 79sacra from the department of Anatomy of MGM medical college and D. Y. Patil medical college, Navi Mumbai were studied to see sacralization. Out of 79 sacra in 14sacra(17.7 %) sacralization was observed.Out of 14 sacra, 4 sacra showed bilateral and complete sacralization, 5 sacra showed unilateral and partial sacralization and 5 sacra showedincomplete fusion between L5 and S1 vertebra. Change in normal structure of lumbar vertebra and sacrum may lead to alteration in kinematics of lumbosacral region which may lead to compression of nerve and low back pain. Knowledge regarding incidence of sacralization will be useful for radiologist and orthopaedic surgeon while dealing with low back pain.

Key Words: Sacrum, Lumbar Vertebra, Sacralization, Lumbosacral Region.


  1. Ferguson AB clinical and roentgen interpretation of lumbosacral spine. Radiology. 1934;22:548-558.
  2. Meshan I. Farra- Meshan RM.(ed) Atlas of Normal Radiographic Anatomy 2nd edition. Saunders Company Philadelphia.1985:416-419.
  3. Cecil Maduforoetal, Study of the Lumbosacral Angles of Males in Port Harcourt, South- South, Nigeria, The Nigerian Health Journal 2012;12(1).
  4. Abitbol MM. Evolution of the lumbosacral angle. Am J Phys Anthropol. 1987; 72:361-372.
  5. KubavatDharatietal, A study of sacralisation of fifth lumbar vertebra in Gujarat, National Journal Of Medical Research, 2012;2(2):211-213.
  6. Lee CK, Langrana NA. Lumbosacral spinal fusion. A biomechanical study. 1984;9:574–581.
  7. Hambly MF, Wiltse LL, Raghavan N, Schneiderman G, Koenig C. The transition zone above a lumbosacral fusion. 1998;23:1785–1792.
  8. Elster AD. Bertolotti’s syndrome revisited. Transitional vertebrae of the lumbar spine. 1989;14:1373–1377.
  9. Magora A, Schwartz A. Relation between the low back pain syndrome and x-ray findings.Transitional vertebra (mainly sacralization) Scand J Rehabil Med.1978;10:135–145.
  10. Wigh R E. The thoracolumbar and lumbosacral transitional junctions. Spine (Phila Pa 1976) 1980;5(3):215–222.
  11. Konin G P, Walz D M. Lumbosacral transitional vertebrae: classification, imaging findings, and clinical relevance. AJNR Am J Neuroradiol. 2010;31(10):1778–1786.
  12. Castellvi A E, Goldstein L A, Chan D P. Lumbosacral transitional vertebrae and their relationship with lumbar extradural defects. Spine (Phila Pa 1976) 1984;9(5):493–495.
  13. Vijay Sekharappa,etal, Lumbosacral Transition Vertebra: Prevalence and Its Significance, Asian spine journal, 2014, 8(1),51-58.
  14. Bron J L, van Royen B J, Wuisman P I. The clinical significance of lumbosacral transitional anomalies. Acta Orthop Belg. 2007;73(6):687–695.
  15. Bustami F. The anatomical features and functional significance of lumbar transitional vertebra. Jordan Med J 1989;23:49-59.
  16. Shobha kumaretal, Study of sacralisation of fifth lumbar vertebra, journal of dental and medical sciences, 2016;15(11):58-61.
  17. Vandana A.Sharma,D. K.Sharma,C.K.Shukla.Osteogenic study of lumbosacral transitional vertebra in central India region.J.Anat.Soc.India 2011;60(2):212-217.
  18. Peter H, Wilm B, sakai N, Imai K, Maas R, Balling R. Pax 1 and Pax 9 synnergistically regulate vertebral column development. Development 1999;126:5399-408.
  19. Brailsford JF. Deformities of the lumbosacral region of the spine. Brit J Surg 1928; 16: 562-627.
  20. Moore BH, Illinois C. Sacralization of the fifth lumbar vertebra. J Bone Joint Surg 1925;7:271-278.
  21. L. Moore,T.V.N.Persaud, The Developing human,clinically oriented embryology Skeletal system.8th edition, published by Saunders, Elsevier,Philadelphia, 2008:344-346.
  22. Tini PG, WISes G, Ainn WM. The transitional vertebrae of the lumbrosacral spine: Its radiological classification, incidence, prevelence, and clinical significance. RheumatolRehabi 1977;16:180-5.
  23. Berlemann U, Jeszenszky DJ, Buhler DW, Harms J:The role of lumbar lordosis, vertebral end-plate inclination,disc height, and facet orientation in degenerative spondylolisthesis. J Spinal Disord 1999; 12: 68-73.09.
  24. Otani K, Konno S, Kikuchi S: Lumbosacral transitionalvertebrae and nerve-root symptoms. J Bone Joint Surg Br2001; 83: 1137-1140.
  25. Wigh RE, Anthony HF Jr: Transitional lumbosacraldiscs. Probability of herniation. Spine 1981;6:168-171.
  26. W. van Tulder, W. J. J. Assendelft, B. W. Koes, and L. M. Bouter. Spinal radiographic findings and nonspecific low back pain: a systematic review of observational studies. Spine 1997;22(4):427–434.
  27. Paajanen, M. Erkintalo, T. Kuusela, S. Dahlstrom, and M. Kormano. Magnetic resonance study of disc degeneration in younglow-backpainpatients,Spine, 1989;14(9):982–985.
  28. S. Chang and H. Nakagawa, “Altered function of lumbar nerverootsinpatientswithtransitionallumbosacralvertebrae. Spine 2004;29(15):1632–1634.
  29. Konin G P, Walz D M. Lumbosacral transitional vertebrae: classification, imaging findings, and clinical relevance. AJNR Am J Neuro-radiol. 2010;31(10):1778–1786.                    

Cite this article: Anjali Sabnis, Manisha Nakhate. A STUDY OF PREVALENCE OF SACRALIZATION OF L5 VERTEBRA. Int J Anat Res 2020;8(1.3):7399-7402. DOI: 10.16965/ijar.2020.112