RESUMO
Objective To study the effect of methylprednisolone therapy assisted by direct current field to treat spinal rord injury.Methods In order to make up for the defect that the direct current field could tiol reduce or remove spinal-cord edema,methylprednisolone was used 2 hours after spinal-cord injury.24 Chinese dogs wore randomly divided into two groups.Their spinal cords were made completely injured with Allen method.In Group A the electric stimulator was put into the body directly 6 hours after the spinal cord injury,while in Group B a large dose of rneuiylprednisolone was first injected 2 hours after thf spinal cord injury and then the electric stimulator was put into the body 6 hours after the spinal cord injury.In both groups the nerve function,cortical somatosensory evoked potential and three kinds uf morphometric changes were observed at 1,2,and 3 months after the injury.Results All the indexes mentioned above in Group B were much better than those in Group A.The differences between the two groups were statistically significant.Conclusion The direct current field can promote spinul curd regeneration effectively.A large dose of methylprednisolone assisted by direct current field has synergislic effects in treatment of spinal cord injury,especially in accelerating neurological functional recovery.