ABSTRACT
The gold standard therapy for repair of ureteropelvic junction obstruction has been open pyeloplasty with long-term success rates consistently exceeding 90% (1,2).
In an attempt to reduce the morbidity of the flank incision, new minimally invasive procedures, endoscopic or fluoroscopic retrograde, and endoscopic percutaneous antegrade pyelotomy were developed (3-6). All achieved the goals of short hospital stay and rapid recovery, but had lower success rates.
