Objective To investigate the correlation of the cross-sectional area(CSA)of the bilateral multifidus and the erector spinae measured by MRI with low back pain in spinal fracture patients.Methods The clinical data of 100 patients with T12 and/or L1 compression fractures who received non-surgical treatment from April 2019 to April 2022 were retrospectively analyzed(fracture group),and 100 healthy adults who underwent physical examination during the same period were selected as the control group.MRI T1WI,T2WI and Image J2x software were used to measure the total relative cross-sectional area(RCSA)of the bilateral multifidus and the erector spinae at T12/L1 and L1/L2 levels in the 2 groups.The differences of the bilateral multifidus and the erector spinae total RCSA between patients with different pain intensity in fracture group were compared,and a 4 points of visual analogue scale(VAS)score were used as the boundary.Multiple linear regression was used to analyze the correlation between age,sex,VAS score and bilateral multifidus and erector spinae total RCSA.Results The bilateral multifidus and erector spinae total RCSA in the fracture group was lower than that in the control group,with a statistical significance(P<0.05).The bilateral multifidus and erector spinae total RCSA in patients with VAS score ≥ 4 was significantly lower than that in patients with VAS score<4,and the difference was statistically significant(P<0.05).The results of multiple linear regression analysis showed that age and VAS score were negatively correlated with the bilateral multifidus and erector spinae total RCSA(P<0.05).Conclusion Para spinal multifidus and erector spinae atrophy may be present in patients with spinal fracture,and the degree of atrophy is correlated with low back pain,and age also has a certain influence on bilateral multifidus and erector spinae atrophy.
关键词
胸椎/腰椎/腰痛/脊柱骨折/肌萎缩/磁共振成像
Key words
Thoracic vertebrae/Lumbar vertebrae/Low back pain/Spinal fractures/Muscular atrophy/Magnetic resonance imaging