[New technic of retro-peritoneal renal transplantation in the left lumbar position in the child. Report of two cases (author's transl)].

In the child, renal transplantation is almost always carried out by placing the kidney within the peritoneum for a simple reason: the donors being adults, the kidneys are too large to be placed in extra-peritoneal position. However, all authors agree that placing the kidney in an extra-peritoneal position offers undoubted advantages.