Rare indication for abdominal caesar section for twin collision

One very serious complication in twins, although rarely seen, is the misalignment of the fetuses with infringement of them in the pelvis, which makes natural delivery unlikely, almost impossible. Similar difficulties during delivery arise when both twins enter the pelvis at the same time and prevent each other from moving forward, and both fetuses can enter the pelvis with their heads or pelvic ends, or one enters the pelvis with the head, the other with the pelvic end, or, finally, one sits astride the other.