Evaluation of urethrovesical junction mobility by perineal ultrasonography in stress urinary incontinence.

Perineal ultrasonographic measurements of the cephalocaudal and the ventrodorsal components of urethro-vesical junction (UVJ) movement at rest and stress was performed in 35 patients of stress urinary incontinence (SUI) and 20 continent controls. The cephalocaudal distance of UVJ from the pubis at rest position was almost similar in both continent and incontinent groups, but there was significant difference during stress. The cephalocaudal mobility and the ventrodorsal distance from the pubis was markedly different between the two groups, both at rest and during stress. However, the ventrodorsal mobility was similar in both groups. It is concluded that the UVJ mobility of SUI cases was higher on the cephalocaudal axis than the vetrodorsal axis. The distance between UVJ and the pubis was more on the ventrodorsal axis as compared to the control group and UVJ passed down the pubic symphysis in 63% of SUI cases during stress.