Related Experiment Video
Updated: Jun 6, 2026

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
Published on: September 20, 2018
Point Aa of the POP-Q system as a predictive value of urethral mobility in women
Sun-Ouck Kim1, Ho Suck Chung, Eu Chang Hwang
1Department of Urology, Chonnam National University Medical School, Gwangju, South Korea. seinsena@hanmail.net
Introduction And Hypothesis:
This study was conducted to evaluate the relationship between the point Aa of the pelvic organ prolapse quantification (POP-Q) system and the Q-tip straining angle and to determine if Q-tip testing is required to assess urethral mobility.
Methods:
A total of 250 women presenting with urinary incontinence were prospectively examined. Spearman's correlation coefficient was used to assess the degree of correlation between the POP-Q point Aa position and Q-tip values.
Results:
Urethral hypermobility was noted in 61% of stage I, 89% of stage II, and 100% of stages III and IV. A substantial negative correlation was found between the point Aa position and the straining Q-tip angle (r=0.683, p<0.0001).
Conclusions:
A substantial correlation was found between descent at point Aa and the straining Q-tip angle. The point Aa of the POP-Q system is highly predictive of the abnormal straining urethral angle in women with stage I or greater anterior vaginal wall prolapse.
More Related Videos
Related Concept Videos
Urodynamic Studies: Uroflowmetry
Nursing Assessment of the Genitourinary System III: Percussion and Auscultation
Nursing Assessment of the Genitourinary System II: Inspection and Palpation
Sensitivity, Specificity, and Predicted Value
Sensitivity is the...
Nursing Assessment of the Genitourinary System I: Health History
Imaging Studies VI: Voiding Cystourethrography and Cystography

