Related Experiment Video
Updated: Feb 21, 2026

Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
Published on: October 12, 2017
Anterior deflected urinary stream
Wisam Abbas1, Mark Woodward1, Mohamed Sameh Shalaby2
1Department of Paediatric Surgery, Bristol Royal Children's Hospital, Bristol, UK.
Abstract:
We present a case of anterior deflected urinary stream (ADUS) secondary to meatal shelf with no dysfunctional voiding symptoms (DV). The video illustrates the presentation, operative management and literature review. Meatal deformity in girls has been described in association with DV. Hoebeke et al. highlighted the strong correlation between meatal abnormality and non-neurogenic bladder dysfunction in girls. They demonstrated that girls with ADUS had more severe dysfunction on urodynamics. Klijn et al. prospectively evaluated the effect of surgical meatal correction in girls with ADUS. They found that 39% of female patients with DV had ADUS, 50% of them were free of symptoms following surgical correction. This is the first reported case of an isolated ADUS without DV. Early correction of the anomaly is advocated to limit social distress, and potentially prevent development of DV.
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