[Reconstructive surgeries for children with fused kidney hydronephrosis].

1-19-year follow-up results of plastic surgery for fused kidney hydronephrosis (FKH) in 12 children aged 3-14.5 years (a total of 15 hydronephroses, 3 cases of bilateral disease) were estimated as good. Correction of FKH is performed by resection of the affected ureteropelvic segment with bypass plastic reconstruction according to Andersen-Hynes-Kucera, compulsory total resection of the renal isthmus. Isthmotomy can be conducted only in the presence of connective tissue bridge between the renal poles. Often, renal isthmus consisting of parenchyma is to be removed together with resection of the renal pole (in joint circulation). In addition, for good outcome it is necessary to reconstruct pelvis and (or) perform nephropexy with muscular graft. The operated patients need long-term follow-up, control examinations of the kidney, updated treatment following elimination of the obstruction.