Abstract
Anatomy: 33 normal vertebra with 24 presacral segments: 7 cervical, 12 thoracic rib-bearing and 5 lumbar non-rib-bearing. Approximately 5 % of population with variant transitional anatomy with lumbarization of S1 or sacralization of L5 due to partial fusion of transverse process with sacrum, which may predispose to Bertolotti’s syndrome, which can be a source of back pain caused by the transitional lumbosacral anatomy (Fig. 29.1).
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Davis PC, Wippold 2nd FJ, Brunberg JA, et al. ACR appropriateness criteria on low back pain. J Am Coll Radiol. 2009;6(6):401–7.
Leone A, Guglielmi G, Cassar-Pullicino VN, et al. Lumbar intervertebral instability: a review. Radiology. 2007;245(1):62–77.
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Gaviola, G.C., Shah, N.A. (2017). Lumbar Spine Imaging: X-Ray and CT. In: Yong, R., Nguyen, M., Nelson, E., Urman, R. (eds) Pain Medicine. Springer, Cham. https://doi.org/10.1007/978-3-319-43133-8_29
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DOI: https://doi.org/10.1007/978-3-319-43133-8_29
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