Alteration in the Cross-sectional Area (CSA) Ratio of the Paraspinal Muscles following Vertebral Insufficiency Fractures



Shah, Ali, Iyengar, Karthikeyan P ORCID: 0000-0002-4379-1266, Azzopardi, Christine, Haleem, Shahnawaz, Mehta, Jwalant and Botchu, Rajesh
(2023) Alteration in the Cross-sectional Area (CSA) Ratio of the Paraspinal Muscles following Vertebral Insufficiency Fractures. INDIAN JOURNAL OF RADIOLOGY AND IMAGING, 33 (01). pp. 8-11.

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Abstract

<b>Background</b>  Vertebral insufficiency fractures in the elderly are associated with increased morbidity and mortality. Early diagnosis is essential to direct patient-specific rehabilitation. <b>Aims</b>  We hypothesize that in patients with vertebral insufficiency fractures, there is atrophy of the psoas and paraspinal muscles with alteration in the cross-sectional area (CSA) of the muscles. <b>Materials and Methods</b>  Magnetic resonance imaging (MRI) studies for 100 consecutive patients, older than 60 years presenting with lower back pain, were included in the study. For each MRI study, the CSA of the psoas and paraspinal muscles (multifidus) at the level of L4/5-disc space was measured to calculate the cross-sectional area ratio (CSAR) by two readers. One reader repeated the measurements after an interval of 2 weeks. We divided the patients ( <i>n</i>  = 100) into various groups based on the number of vertebral fractures. <b>Results</b>  In total, 77 patients with vertebral body fractures (48 with one, 16 with two and 13 with more than two fractures) were identified with a mean age of 73 (range 60-92) years. The ratio of multifidus CSA to psoas CSA was calculated with mean values of each group (1-4) as 2.56, 1.89, 2.09 and 2.16, respectively. There was statistically significance difference of the CSAR between the cohorts ( <i>p</i> -value = 0.0115). <b>Conclusion</b>  Vertebral insufficiency fractures in the elderly are associated not only with atrophy of psoas and the multifidus group of muscles as evident by the CSA values, but they also affect the CSAR depending on the number of fractures. This finding may help to direct targeted patient-specific physiotherapy rehabilitation and interventions to prevent further such fractures.

Item Type: Article
Uncontrolled Keywords: spinal fractures, vertebral body, fragility fracture, paraspinal muscles, atrophy, magnetic resonance imaging
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences
Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences > School of Medicine
Depositing User: Symplectic Admin
Date Deposited: 10 Aug 2023 13:52
Last Modified: 10 Aug 2023 13:52
DOI: 10.1055/s-0042-1758522
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3172126