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| HE Xian,PENG Yan,LIANG Anjing.Prevalence and value of Modic change and high-intensity zone on MRI in lower lumbar spine of patients with low back pain[J].Chinese Journal of Spine and Spinal Cord,2012,(5):407-411. |
| Prevalence and value of Modic change and high-intensity zone on MRI in lower lumbar spine of patients with low back pain |
| Received:August 19, 2011 Revised:November 06, 2011 |
| English Keywords:Low back pain MRI Modic change High-intensity zone |
| Fund:中山大学临床医学研究“5010”计划项目（编号：2007020）、广东省自然科学基金项目（编号：06104608） |
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| English Abstract: |
| 【Abstract】 Objectives: To investigate the prevalence and value of Modic change and high-intensity zone(HIZ) on MRI in lower lumbar spine of patients with low back pain(LBP). Methods: The lumbar MRI of L4/5 and L5/S1 from 511 patients(263 men and 248 women) presenting with LBP and with the age of 20 to 70 years were reviewed retrospectively. The prevalence of Modic change, HIZ and their coexistence were evaluated. All patients(discs) with Modic changes or HIZs were divided into Modic group, Modic-HIZ group and HIZ group. The parameters including age, disc height, disc degeneration and degree of LBP(VAS score and ODI score) were compared among three groups. Results: Of 511 patients with LBP, 190 patients(37.18%) and 209 segments showed Modic changes, 127 patients(24.85%) and 142 segments presented with HIZs, 18 patients(3.52%) and 18 segments had coexistence of Modic change and HIZ in one level. The number of cases in HIZ group, Modic-HIZ group and Modic group was 89(124 segments), 18(18 segments) and 152(191 segments) respectively, with the average age of 46.0±11.0, 49.2±9.2 and 53.5±10.6 years old for HIZ group, Modic-HIZ group and Modic group respectively, which sowed significant difference between HIZ and Modic group(P<0.05); the average disc height was 9.93±2.46mm, 8.73±2.45mm and 7.57±2.21mm for three groups respectively, which showed significant difference among three groups(P<0.05); the average degree of disc degeneration of 3 groups was over grade Ⅲ with the incidence of grade Ⅳ and grade Ⅴ degeneration of 48.39%, 72.22% and 75.92% respectively, which showed significant difference between HIZ and Modic group or Modic-HIZ group(P<0.05); VAS scores were 8.39±0.32, 8.45±0.30 and 8.61±0.54 and ODI scores were 38.22±4.23, 38.45±4.16 and 39.18±3.53 for 3 groups respectively, which showed no significant difference among three groups(P>0.05). Conclusions: The prevalence of Modic change and HIZ in lower lumbar spine of patients with LBP is very high, but their coexistence in one level is rare. When coexistence happens, LBP will not increase simultaneously. |
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