Effect of a mattress on lumbar spine alignment in supine position in healthy subjects: an MRI study

European Radiology Experimental

Original Article

Stefano Borghi¹  Luca Maria Sconfienza²  Carmelo Messina²  Tito Bassani³  Fabio Galbusera⁴  Jacopo Antonino Vitale⁴ 

[1] Department of Biomedical Sciences for Health, University of Milan, Milan, Italy;Department of Biomedical Sciences for Health, University of Milan, Milan, Italy;IRCCS Istituto Ortopedico Galeazzi, Milan, Italy;IRCCS Istituto Ortopedico Galeazzi, Milan, Italy;Spine Center, Schulthess Klinik, Zurich, Switzerland;

关键词: Lordosis;    Magnetic resonance imaging;    Sacrum;    Sleep;    Spine;   

DOI  :  10.1186/s41747-023-00361-w

 received in 2023-03-02, accepted in 2023-06-06,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundHumans should sleep for about a third of their lifetime and the choice of the mattress is very important from a quality-of-life perspective. Therefore, the primary aim of this study was to assess the changes of lumbar angles, evaluated in a supine position using magnetic resonance imaging (MRI), on a mattress versus a rigid surface.MethodsTwenty healthy subjects (10 females, 10 males), aged 32.3 ± 6.5 (mean ± standard deviation), with body mass index 22.4 ± 2.9, completed three evaluations: (i) spine MRI in supine position on a mattress (MAT); (ii) spine MRI in supine position on rigid surface (CON); and (iii) biplanar radiographic imaging in standing position. The following indexes were calculated for both MAT and CON: lumbar lordosis angles L1–L5, L1–S1, L5–S1, and the sacral slope (SS). Further, pelvic incidence (PI) was calculated from the biplanar radiographic images.ResultsMain findings were (i) L1–L5 and SS were greater in MAT than CON (L1:L5: +2.9°; SS: +2.0°); (ii) L5–S1 was lower in MAT than CON (−1.6°); (iii) L1–S1 was greater in MAT than CON only for male subjects (+2.0°); (iv) significant and positive correlations between PI and L1–L5, L1–S1 and SS were observed in both CON and MAT.ConclusionsThe use of a mattress determined small but statistically significant changes in lumbar angles.Relevance statementThe use of a mattress determines small but statistically significant changes in radiological angles describing the sagittal alignment of the lumbar spine when lying in the supine position.Key points• Lordosis angle L1–L5 was greater in MAT than in CON condition (+2.9°).• Sacral slope was greater in MAT than in CON condition (+2.0°).• Lordosis angle L5–S1 was lower in MAT than in CON condition (−1.6°).Graphical Abstract

【 授权许可】

CC BY   
© European Society of Radiology (ESR) 2023

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