[Unilateral testicular torsion. Effect on the contralateral testis]

The unilateral testicular torsion produce alteration of contralateral testes, with a frequence of sterility and alteration sperm bigger than normal population. The great differences report for various authors in the works make necessary to know better the pathogenesis of the testicular torsion about the fertility. With the aim to study this aspect, we carry out this experimental work in that animals with testicular torsion, although with individual results very different, have, again the animals with sham intervention, less number of sperm (P less than 0.001), with less time of survivorship (P less than 0.001), bigger percentage of precocious agglutination and abnormal shape (P less than 0.001) and bigger quantity of immobile sperm. These alteration as adult animals, but they are bigger in the late.