Abstract
Objective To study the change of levator urethra gap(LUG) in postpartum female using pelvic floor three-dimensional ultrasonography.Methods Totally 80 postpartum women and 30 nulliparas were examined by three-dimensional pelvic floor ultrasonography.The images were obtained at maximal pelvic floor muscle contraction,and then the morphology of puborectalis muscle on tomographic ultrasound imaging were observed and the right LUG and left LUG were measured.Results The puborectalis was intact in all nulliparas and 69 postpartum women.The puborectalis avulsion was find in 11 postpartum women.The LUG of postpartum group was greater than that of nullipara group (P ＜0.05).In postpartum group,the LUG of puborectalis avulsion was greater than that of intact puborectalis(P ＜0.05).There was no difference between the right LUG and left LUG in nullipara group and in the postpartum women with intact puborectalis (P ＞ 0.05).ConcIusions LUG is a good imaging parameter to evaluate the levator avulsion in postpartum women. Key words: Ultrasonography, three-dimensional; Levator-urethra gap; Levator ani muscle; Puborectalis
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