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Paraspinal muscle characteristics on MRI in degenerative lumbar spine with normal bone density, osteopenia and osteoporosis: a case-control study by Gengyu Han; Da Zou; Zexiang Liu; Siyu Zhou; Wei Li; Chunjie Gong; Zhuoran Sun; Weishi Li is a Medicine article available to read on EtoBox.

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## Abstract ## Background To investigate the difference of paraspinal muscles in patients with normal bone density, osteopenia and osteoporosis. ## Methods Patients undergoing surgery for lumbar spinal stenosis were included. Thirty-eight patients with osteoporosis were matched to patients with osteopenia and patients with normal bone density in a 1:1 manner according to WHO criteria. Dual-energy X-ray absorptiometry (DXA) scans and lumbar CT were performed preoperatively to measure the BMD of lumbar, femur and hip and HU values of L1-L4 respectively. The relative total cross-sectional area (rTCSA) and fat infiltration (FI) of multifidus (MF) and erector spinae (ES), and the relative functional CSA (rFCSA) of psoas major (PS) were measured at L4–5 and L5-S level on preoperative MRI. ## Results Osteoporotic patients showed lower BMI, higher MF FI and higher ES FI when compared with normal bone density group (25.57 ± 3.71 vs 27.46 ± 3.11; 0.38 ± 0.1 vs 0.32 ± 0.08; 0.33 ± 0.1 vs 0.28 ± 0.08; all adjusted p < 0.05). Both the MF FI and ES FI were significantly correlated with lumbar T-score (r = − 0.223, p < 0.05; r = − 0.208, p < 0.05) and the averaged lumbar HU value (r = − 0.305, p

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Author

Gengyu Han; Da Zou; Zexiang Liu; Siyu Zhou; Wei Li; Chunjie Gong; Zhuoran Sun; Weishi Li

Publisher

Springer Science and Business Media LLC

Published

2022

Language

EN

Field

Medicine (Health Sciences)