Bivalve transinusal anatrophic nephrolithotomy. Anatomic considerations. New technique

: The paper describes the experience accumulated over a 9- year period on surgical treatment of coralliform lithiasis. The treatment implied the use of an original technique inspired in the surgical concepts divulged by Gil-Vernet, Kelly and Dufour. Ninety-four patients have been effectively treated with this technique, known as the Bivalve Transinusal Anathropic Nephrothomy. The surgical technique applied is described and analyzed.