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International Journal of Morphology

versão On-line ISSN 0717-9502

Resumo

ADIBATTI, Mallikarjun  e  ASHA, K. Lumbarisation of the First Sacral Vertebra a Rare Form of Lumbosacral Transitional Vertebra. Int. J. Morphol. [online]. 2015, vol.33, n.1, pp.48-50. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022015000100007.

In the lumbosacral region, anatomical variations occur with changes in the number of sacral vertebra either by deletion of first sacral vertebra or by the union of fifth lumbar or first coccygeal vertebra with sacrum. Lumbasacral transitional vertebrae (LSTV) is the most common congenital anomalies of the lumbosacral region. It most commonly involves the fifth lumbar vertebra showing signs of fusion to the sacrum known as sacralisation or the first sacral vertebra shows signs of transition to a lumbar configuration commonly known as lumbarisation. Complete transition can result in numerical abnormalities of the lumbar and sacral vertebral segments. Lumbarisation of first sacral vertebra is seen with a very low incidence of 2%. Knowledge of presence of such vertebral variation will be helpful for the clinicians to diagnose and treat patients with low back pain. Although sacralisation of fifth lumbar vertebrae is most commonly seen when compared to lumbarisation of first sacral vertebrae, we report here a case of lumbarisation of first sacral vertebrae for its rarity among the LSTV and clinical implications.

Palavras-chave : Vertebrae; Sacrum; Sacralisation; Lumbarisation; Transitional vertebrae.

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