3.5 yr old with renal history now with urinary retention

my 3.5 yr old, was diagnosed while in utero with left puj  obstruction and left vuj obstruction. she has had both ends of left ureter re implanted ( tried a jj stent first but did not work) its now been a year since having left extravesical reimplantation and she is still having problems while urinating, going twice a day. Once on waking up and once again at bed time while thoroughly struggling to push urine out on both accasions!!
Her recent ultrasound showed after 2 consecitive voidings she still had residue of at least 80ml, and a pooling at top of left kidney with scar tissue making a restricting band through the centre of it.

any one know what the next step may be? she starts school next sept and really want her to be on the right track by then.

[Paderla Anitha, DNB]

Hello and hope you are doing well.

The scar is it from the surgery? or is it due to an infection. it needs to be ruled out. Also, a urodynamic testing may better define the problem.

Hope this helped and do keep us posted.