Figure 5.

Bühner technique: (a) place the Gerlach needle into the ventral incision (black arrow) and push it through the subcutaneous tissue, laterally to the vulva, exiting at the dorsal incision (white arrow); thread the dorsal free end of the tape into the eyelet of the needle and pull it back, through the subcutaneous tissue so that the tape loops surrounding vulvar labia; (b) tie a knot with the vaginal tape exiting the ventral incision (red arrow); reduce the vulvar opening up to allowing proper urination.