Imaging follow-up study of disc degeneration and Modic changes caused by endplate fracture / 中国医师进修杂志

ABSTRACT

Objective:To investigate the imaging follow-up value of discectomy and Modic changes caused by endolate fracture.Methods:Forty-six patients with end-plate fractures admitted to Changxing People′s Hospital during January to December 2016 were selected as subjects and followed up for 1 year. All patients underwent MRI examination to analyze the changes of Modic, disc degeneration and lumbar function recovery before and after follow-up.Results:A total of 230 lumbar intervertebral discs in 46 patients in this group had Modic changes. After 1 year′s follow-up, Modic changes occurred in 185 lumbar intervertebral discs in 46 patients. Modic changes occurred in L 5-S 1 [38.92%(72/185)] and L 4 - L 5 [40.0%(74/185)] segments. After 1 year′s follow-up, the rate of intervertebral disc 3-4 grade was higher than that before discharge [70.43%(162/230) vs. 60.43%(139/230)], the rate of intervertebral disc 6-8 grade was lower than that before discharge[8.70%(20/230) vs. 15.22%(35/230)], and the differences were statistically significant ( χ2 = 5.085, 4.646, P<0.05). After 1 year′s follow-up, the lumbar spine function score was significantly higher than that before discharge [(23.47 ± 2.86) scores vs. (9.15 ± 1.32) scores], and the difference was statistically significant ( P<0.05). Conclusions:Diffusion-weighted MR imaging has the characteristics of convenient operation, good repeatability and high accuracy. It is suitable for diagnosis and follow-up of disc degeneration and Modic change caused by endplate fracture. It is worthy of clinical promotion.