Menticoglou maneuver

After an assistant gently flexes the fetal head toward the anterior shoulder, the obstetrician places his/her right middle finger into the fetus' posterior axilla from the left side of the pelvis and the left middle finger into the posterior axilla from the right side of the pelvis. The two middle fingers in the axilla are then used to pull the posterior shoulder downward along the curve of the sacrum. Once the shoulder has been brought down sufficiently, the posterior arm can be grasped and delivered.