Poststerilization tubal torsion.

Four cases of torsion of the fallopian tube following sterilization are reported. This is a rare complication that may occur two to eight years after tubal ligation. It is more likely to occur after Pomeroy's, Irving's or the Viennese school technique of sterilization, in which the free distal segment of the fallopian tube is suspended by a narrow mesentery. Hydrosalpinx, which is common after sterilization, seems to predispose to torsion.