Video 6:

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McRoberts’ maneuver is the sharp flexion of the maternal thighs against her abdomen, with her knees bent and directed toward the mother’s head (rather than toward her flanks), usually performed by nurses or lay support persons in attendance. Its goal is to lift and rotate the entire pelvis cephalad, thereby lifting the pubic bone over the anterior shoulder. As with suprapubic pressure, McRoberts’ maneuver is indirect, and should be accompanied by direct manipulation of the shoulders. Since McRoberts’ position also flattens the sacrum, its use assists the operator in grasping and shrugging the posterior shoulder, pulling it diagonally forward and into the hollow of the sacrum as either a posterior Rubin’s maneuver or before initiating delivery of the posterior arm or corkscrew maneuver.