Prediction value of clinical efficacy of somatosensory evoked potentials in the operation of cervical spondylotic myelopathy with different MRI signals
Prediction value of clinical efficacy of somatosensory evoked potentials in the operation of cervical spondylotic myelopathy with different MRI signals
Objective To explore the predictive value of somatosensory evoked potential changes in patients with cervical spon-dylotic myelopathy with different MRI signals for postoperative functional recovery and surgical efficacy.Methods 65 patients with cervical spondylotic myelopathy were selected,with 5 patients lost to following up.The patients were divided into case group(30 cases)and control group(30 cases)based on the presence or absence of signal changes in the spinal cord on MRI.The general indexes,neurological function indexes,imaging and SEP were measured,somatosensory evoked potential(SEP)was monitored before and during the operation.According to the Japanese orthopaedic association(JOA)spinal cord injury function scoring system,each patient was scored before surgery,1 week af-ter surgery and 24 weeks after surgery.Results JOA score was(13.23±1.10)in the case group and(14.00±1.17)in the control group one week after surgery,and(11.17±1.58)in the case group and(13.07±1.05)in the control group 24 weeks after operation,and the difference was statistically significant(P＜0.05).There was a statistically significant difference in the excellent rate between the case group and the control group at 1 week and 24 weeks after surgery(P＜0.05).There was no statistically significant difference in the im-provement rate of intraoperative somatosensory evoked potential between the case group and control group(P＞0.05).Conclusion The changes of MRI signal in cervical spinal cord combined with somatosensory evoked potential monitoring can be used as a method to predict the postoperative efficacy in patients with cervical spondylotic myelopathy.
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