Abstract: ObjectiveTo search for the optimal treatment of hydronephrosis after spinal cord injury .Methods46 cases were treated by indwelling catheter, intermittent catheterization and drug therapy, and comprehensive therapy respectively. The course of treatment and the recurrence rate were observed after hydronephrosis remitted. Results There were no differences in the course of treatment among the three different kinds of therapy. The recurrence rate of the detrusor sphincter dyssynergia(85.7%) was higher than that of the detrusor hyperreflexia (35%) and the detrusor hyporeflexia(25%).ConclusionsThe optimal therapy on slight and moderate hydronephrosis should be intermittent catheterization and drug therapy to avoid the complications of long term indwelling catheter. SCI hydronephrosis is indistinct and recurrent easily. B ultrasound for kidneys is helpful in discovering SCI hydronephrosis on early stage. The earlier the treatment, the better the prognosis. Urodynamics plays an important role in the management of SCI hydronephrosis.

Key words: spinal cord injury, rehabilitation, hydronephrosis, intermittent catheterization, B ultrasound, urodynamics