Objective To study the correlation between changes of MRI imaging parameters and postoperative functional re-covery in patients with spinal fracture.Methods From January 2020 to January 2023,a total of 200 patients with spinal frac-tures were enrolled,which included 117 males and 83 females,aged 43-68 years old with mean age of 48.62 years old.There were 78 cases of thoracic spinal cord injury and 122 of lumbar spinal cord injury;93 cases of falling,61 of crush injury and 46 of traffic accident.All of them performed conventional percutaneous vertebroplasty,and MRI examination was per-formed before and 3-month post operation.According to changes of T2-weighted imaging(T2WI)signal 3-month post operation,all of them were divided into signal intensity reduction group,signal intensity invariant group and signal intensity increment group.The Japanese Orthopaedic Association(JOA)score was evaluated,the treatment effect,changes in JOA score and X-ray indicators before and after treatment in 3 groups were compared.Results The T2WI signal intensity was reduced in 128 cases,unchanged in 24 cases and increased in 48 cases 3-month post operation.The JOA scores were significantly increased after treat-ment,and the scores of signal intensity reduction group was significantly higher than that of signal intensity invariant group and signal intensity increment group[(25.27±1.12)scores vs(24.34±1.17)scores,(25.27±1.12)scores vs(23.38±1.23)scores.P＜0.05].After treatment,the Cobb's angle,anterior vertebral height and posterior vertebral height were significantly increased,and the X-ray indexes of signal intensity reduction group were significantly higher than that of signal intensity invariant group and sig-nal intensity increment group[(4.27±1.12)° vs(6.88±1.28)°,(4.27±1.12)° vs(7.16±1.52)°,(91.78±7.46)mm vs(85.73±8.44)mm,(91.78±7.46)mm vs(84.67±8.14)mm,(95.53±6.68)mm vs(90.69±6.36)mm,(95.53±6.68)mm vs(88.74±7.23)mm.P＜0.05].After treatment,the superior rate was significantly higher in signal intensity reduction group than in signal intensity in variant group and signal intensity increment group[87.50％(112/128)vs 70.83％(17/24)vs 66.67％(32/48)].Conclusion It is demonstrated that the recovery effect of spinal fracture function is closely related to changes of MRI signal intensity of spinal frac-ture,and recovery effect of spinal fracture function in patients with decreased T2WI signal intensity is better.
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