| Title: | Correlation between sagittal balance and thoracolumbar elastic energy parameters in 42 spines subject to spondylolisthesis or spinal stenosis and 21 normal spines |
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| Authors: | ID Bračun, Špela (Author)
ID Romolo, Anna (Author)
ID Rehakova, Veronika (Author)
ID Leban, Jure (Author)
ID Pukšič, Žan (Author)
ID Vengust, Rok (Author)
ID Daniel, Matej (Author)
ID Kralj-Iglič, Veronika (Author)
ID Drab, Mitja (Author) |
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| Files: |  PDF - Presentation file, download (3,17 MB)
MD5: A6E4E4A01446872DC0FCFA821F87F816
 URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S2405844024145008
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  UKC LJ - Ljubljana University Medical Centre
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| Abstract: | The curvature of the lumbar spine plays a critical role in maintaining spinal function, stability, weight distribution, and load transfer. We have developed a mathematical model of the lumbar spine curve by introducing a novel mechanism: minimization of the elastic bending energy of the spine with respect to two biomechanical parameters: dimensionless lumbosacral spinal curvature ▫$c_{LS}$▫ and dimensionless curvature increment along the spine CI. While most of the biomechanical studies focus on a particular segment of the spine, the distinction of the presented model is that it describes the shape of the thoracolumbar spine by considering it as a whole (non-locally) and thus includes interactions between the different spinal levels in a holistic approach. From radiographs, we have assessed standard geometrical parameters: lumbar lordosis LL, pelvic incidence PI, pelvic tilt PT, sacral slope ▫$\psi_0$▫ and sagittal balance parameter SB = sagittal vertical axis (SVA)/sacrumbicoxofemoral distance (SFD) of 42 patients with lumbar spinal stenosis (SS) or degenerative spondylolisthesis (SL) and 21 radiologically normal subjects. SB statistically significantly correlated with model parameters ▫$c_{L5}$▫ (r = − 0.34, p = 0.009) and − CI (r = 0.33, p = 0.012) but not with standard geometrical parameters. A statistically significant difference with sufficient statistical power between the patients and the normal groups was obtained for ▫$c_{LS}$▫ , CI, and SB but not for standard geometrical parameters. The model provides a possibility to predict changes in the thoracolumbar spine shape in surgery planning and in assessment of different spine pathologies. |
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| Keywords: | lumbar lordosis, thoracolumbar spine, elastic energy, sagittal balance, spine curvature |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2024 |
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| Number of pages: | 15 str. |
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| Numbering: | Vol. 10, iss. 19, [article no.] e38469 |
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| PID: | 20.500.12556/DiRROS-29932  |
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| UDC: | 577:611 |
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| ISSN on article: | 2405-8440 |
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| DOI: | 10.1016/j.heliyon.2024.e38469 |
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| COBISS.SI-ID: | 210330883 |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 4. 10. 2024;
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| Publication date in DiRROS: | 09.06.2026 |
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| Views: | 153 |
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| Downloads: | 144 |
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