patient after hypospadias repair require regular urethral dialatation other wise the voiding pattern has no difference in pre and post repair od distal conditions

Efectively most of the urethrals hypospadias repair shown strictures that are asyptomatic in the most of the cases. Rarely a number of these strictures may cause a restricted urinary flow years later of the reparation, but these cases are put in reality by the patients no by the surgeon.

patients after hypospadias repair had obstructive uroflow rate this is because the new urethra had no supportive tissue like the normal that had surrounded by the corpus spongiosum 

We are all agree with Ricardo, but it depends of the degree of obstruction.

It was noticed that most of the boys void with Qmax below the 50th percentile with few cases below the 5th percentile while the Qave of those cases was above the 5th percentile. Majority of bays had Qmax that tend to aggregate around the 25th percentile 

Realmente existe una mejoria en la Qmax pero nunca es como la prueba urodinamica normal

this is the usual, it is hard to be normal voiding.

The abnormal pattern of urine flow of Hypospadias patients prior to surgical repair indicates the abnormal development of the propelling mechanism of the affected urethral spongiosa. Post repair (functional obstruction) is a phenomenon that warrants further exploratio.