Which obstetric parameter does influence levator morphology?

Purpose: to evaluate the effects of obstetrical and fetal parameters on the dimensions and integrity of levator ani muscle (LAM) assessed by 3D ultrasound soon after vaginal delivery. Patients and methods: patients delivered vaginally at our department between January-June 2009 and were included in our prospective observational study. 3D perineal ultrasound was performed between 48–72 hours postpartum, after voiding, in supine position and at rest. Axial plane obtained at the level of minimal levator hiatal dimension was utilized to determine hiatal circumference (between internal border of LAM and the inferior…