title: Continence mechanism after colpo-needle suspension for stress urinary incontinence.
abstract: OBJECTIVE
  To determine the mechanism by which continence is restored following the colpo-needle suspension procedure.
  
  
  METHODS
  During 1990-1991, 37 women underwent colpo-needle suspension for stress urinary incontinence. Urodynamic investigation was performed preoperatively and 6-12 months postoperatively, and the results of these tests were compared in order to define the changes that might be responsible for the restoration of continence.
  
  
  RESULTS
  In comparing the preoperative and postoperative cystometric and uroflowmetric measurements, we found no significant differences in the values for bladder capacity, residual volume pressure rise on filling or standing, maximal urethral voiding pressure or peak flow rates. The urethral pressure profiles at rest did not result in statistically significant differences regarding urethral length or urethral pressure. The only such differences postoperatively were elevation of pressure. Transmission ratios on coughing and in the proximal half of the urethra were Q1, 100.3 (P < .001), and Q2, 100.4 (P < .002), respectively.
  
  
  CONCLUSIONS
  Colposuspension appears to correct genuine stress incontinence by repositioning the proximal urethra in the intraabdominal pressure zone, causing restoration of positive pressure transmission to the proximal urethra.
authors.affiliation: Department of Obstetrics and Gynecology, Assaf Harofeh Medical Center, Zerifin, Israel.
authors.forename: R
authors.initials: R
authors.lastname: Langer
authors.forename: Z
authors.initials: Z
authors.lastname: Tal
authors.forename: D
authors.initials: D
authors.lastname: Schneider
authors.forename: O
authors.initials: O
authors.lastname: Avrech
authors.forename: I
authors.initials: I
authors.lastname: Bukovsky
authors.forename: E
authors.initials: E
authors.lastname: Caspi
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008022:Ligaments / Q000601:surgery; D011312:Pressure; D014521:Urethra / Q000601:surgery*; D001743:Urinary Bladder / Q000601:surgery*; D014550:Urinary Incontinence, Stress / Q000503:physiopathology / Q000601:surgery*; D014563:Urodynamics; D014621:Vagina / Q000601:surgery*