During a vaginal delivery of a macrosomic baby (estimated 4.5 kg), the head delivers but the shoulders are impacted at the symphysis. After calling for help, what is the correct sequence of maneuvers: McRoberts position, suprapubic pressure, Rubin II / Woods screw, delivery of posterior arm, Zavanelli? At what point do we consider Zavanelli maneuver, and what neonatal injuries must be documented?
Be specific. Cite references where possible. Your credentials will be shown with your answer.