[Simon's posterior vertical lombotomy in the conservative treatment of upper lumbar renal and ureteral lithiasis].

The authors present their experience accumulated in the treatment of 107 cases in which they have applied posterior vertical lombotomies as a conservative method of renal lithiasis and of the upper lumbal urether, and they re-actualize ore of the less used approaches. From the very beginning it is evident that vertical posterior lombotomy can be used as a narrow approach and, at the same time it can be created or it may be widended, just as a classical lombotomy. A secure technique, that of intra-sinusal pyelotomy, will determine, together with the type of the lithiasis, a choice of posterior lombotomy, with a sufficiently wide access pathway, which only in exceptional conditions will necessitate a cranial or caudal extension.