Ureter reflex disorder

Patient: Hello Doctor,Girl baby,(aged 1 year)born with ureter reflex syndrome.Since then on continuous antibiotic.Twice had high fever not related to this disorder. Ureter dialation left/ grade 5, right/ grade 3.Since surgery is the solution, we want to go in for open surgery.Must the reimplantation to be done in bothe the ureters, or in one,(in right ureter with severity grade 5) will do?Thanking you for your help,Annamalai Subramanian.

Symptoms: No symptom

Doctor: