Morphological Changes in the Lumbar and Abdominal Muscles in Individuals with Sacralization

Year 2024, Volume: 7 Issue: 6, 248 - 252, 15.11.2024

Fatih Çankal , İlyas Uçar , Caner Karartı , Selim Çınaroğlu

https://doi.org/10.19127/bshealthscience.1553323

Abstract

Although sacralization is one of the most common congenital anomalies of the spine, its effect on surrounding muscles is still not well known. This study was conducted to determine the size of the lumbar and abdominal muscles of the individuals with sacralization and to compare with the control group. Eighty-five participants with sacralization phenomena and fifty-six asymptomatic participants were included in this study. Sacralization was classified according to the Castellvi classification. The cross-sectional area of the multifidus lumborum, erector spinae and rectus abdominis muscles, and the section thicknesses of external abdominal oblique, internal abdominal oblique and transversus abdominis muscles were measured bilaterally on axial computed tomography images at the L1-2 and L4-5 levels. ANCOVA revealed that there is no any significant group*side interaction effect regarding muscles sizes in terms of two groups in L1-L2 and L4-L5. In addition, ANCOVA revealed a both side effect [(P=0.020; η2p=0.038)] and group*side interaction effect [(P=0.010; η2p=0.049)] regarding length of the L5 transverse process (P˃0.05). Regardless of low back pain, muscle sizes are not associated with the sacralization phenomenon.

Keywords

Sacralization, Computed tomography, Paraspinal muscles, Abdominal muscles

Ethical Statement

The study was approved by the local ethics committee (Registration no: 2021/106) and conducted in accordance with the principles of the Declaration of Helsinki.

Supporting Institution

None.

Thanks

None.

References

• Ambegaonkar JP, Mettinger LM, Caswell SV, Burtt A, Cortes N. 2014 Relationships between core endurance, hip strength, and balance in collegiate female athletes. Int J Sports Physical Ther, 9(5): 604.
• Apaydin M, Uluc M, Sezgin G. 2019. Lumbosacral transitional vertebra in the young men population with low back pain: anatomical considerations and degenerations (transitional vertebra types in the young men population with low back pain). La Radiol Medica, 124(5): 375-381.
• Becker L, Ziegeler K, Diekhoff T, Palmowski Y, Pumberger M, Schömig F. 2021. Musculature adaption in patients with lumbosacral transitional vertebrae: a matched-pair analysis of 46 patients. Skeletal Radiol, 50(8): 1697-1704.
• Carrino JA, Campbell PD, Lin DC, Morrison WB, Schweitzer ME, Flanders AE, Vaccaro AR. 2011. Effect of spinal segment variants on numbering vertebral levels at lumbar MR imaging. Radiology, 259(1): 196-202.
• Castellvi AE, Goldstein LA, Chan DP. 1984. Lumbosacral transitional vertebrae and their relationship with lumbar extradural defects. Spine, 9(5): 493-495.
• Dar G, Peled N. 2014. The association between sacralization and spondylolisthesis. Anatomical Sci Int, 89(3): 156-160.
• Hinterdorfer P, Parsaei B, Stieglbauer K, Sonnberger M, Fischer J, Wur G. 2010. Segmental innervation in lumbosacral transitional vertebrae (LSTV): a comparative clinical and intraoperative EMG study. J Neurol Neurosurg Psychiatry, 81(7): 734-741.
• Hodges PW, Richardson CA. 1997. Contraction of the abdominal muscles associated with movement of the lower limb. Physical Ther, 77(2): 132-142.
• Hughes RJ, Saifuddin A. 2006. Numbering of lumbosacral transitional vertebrae on MRI: role of the iliolumbar ligaments. AJR Am J Roentgenol, 187(1): 59-65.
• Jancuska JM, Spivak JM, Bendo JA. 2015. A review of symptomatic lumbosacral transitional vertebrae: Bertolotti’s syndrome. Int J Spine Surg, 9: 42.
• Önder H. 2018. Nonparametric statistical methods used in biological experiments. BSJ Eng Sci, 1(1): 1-6.
• Paik NC, Lim CS, Jang HS. 2013. Numeric and morphological verification of lumbosacral segments in 8280 consecutive patients. Spine, 38(10): 573-578.
• Peterson CK, Bolton J, Hsu W, Wood A. 2005. A cross-sectional study comparing pain and disability levels in patients with low back pain with and without transitional lumbosacral vertebrae. J Manipulative Physiol Ther, 28(8): 570-574.
• Uçar İ, Batın S, Arık M, Payas A, Kurtoğlu E, Karartı C, Unur E. 2022. Is scoliosis related to mastication muscle asymmetry and temporomandibular disorders? A cross-sectional study. Musculoskeletal Sci Pract, 58: 102533.
• Uçar İ, Karartı C, Cüce İ, Veziroğlu E, Özüdoğru A, Koçak FA, Dadalı Y. 2021. The relationship between muscle size, obesity, body fat ratio, pain and disability in individuals with and without nonspecific low back pain. Clin Anatomy, 34(8): 1201-1207.
• Ulger FEB, Illeez OG. 2020. The effect of lumbosacral transitional vertebrae (LSTV) on paraspinal muscle volume in patients with low back pain. Acad Radiol, 27(7): 944-950.