Patients are randomized 1:1 in the different arms Recording of QoL measured by visual analogue ( pain )scale,EORTC QlQ -C 30 and QLQ - PR 25 questionnaires, incontinence rate, complication rate regarding insufficiency and strictures of vesicourethral anastomoses and urinary tract infection; demand of re-catheterization due to urinary retention and demand of antispasmodics