Pelvimetry - on Wikipedia!
Gees I am surprised, I expected them to be more medicalised but I love it!!!
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Pelvimetry used to be performed routinely to see if a trial of labour should be allowed. Women whose pelvis were deemed too small were given caesarean section's instead of being allowed to birth naturally. Research indicates that pelvimetry is not a useful diagnostic tool for CPD (see below) and then in all cases trial of labour should be allowed. See Blackadar & Viera, 2003, p505
Women's pelvis loosen up before birth (with the help of hormones), and an upright and/or squatting woman can birth a considerably larger baby. A woman in the 'stranded beetle position' (lying on her back) it is more than likely not going to push a bigger baby out, due to the size of outlet that this position creates. Since obstetricians continue to place women in this torturous position for their own personal requirement of 'access', not considering the birthing mother's needs to be in a better position to open her pelvis, it is inevitable that women will be subjected to the false diagnosis that their pelvis is too small to birth their baby.