Objective The aim our study was to evaluate the association between the antepartum clinical
measurement of the Bituberous Diameter (BTD) and the occurrence of unplanned obstetrical
intervention (UOI) due to labor dystocia, including either operative vaginal delivery or
caesarean section in a cohort of low-risk, nulliparous at term. Design Retrospective analysis
of prospectively collected data. Setting Tertiary maternity care. Interventions With the women
lying in lithotomic the distance between two ischial tuberosities was assessed using a tape …