title: Does the tension-free vaginal tape stay where you put it?
abstract: OBJECTIVE
  The tension-free vaginal tape (TVT) is a widely used procedure for the surgical treatment of urodynamic stress incontinence. Long-term follow-up data remain scarce. It has been speculated that scar formation leads to tape shortening and stiffening. This study was designed to longitudinally investigate tape position and mobility.
  
  
  METHODS
  An observational clinical study was performed using ultrasound parameters of tape position and mobility on Valsalva maneuver as main outcome parameters.
  
  
  RESULTS
  Of 92 women eligible for a minimum of two postoperative assessments, 72 (78%) attended at least twice after TVT placement, at a median interval of 1.6 years. Sixty-eight data sets remained after exclusion of 4 patients who had undergone tape division. At the last visit, the tape was found to be more caudal, at rest (P <.001) and on Valsalva maneuver (P =.002). Tape mobility on Valsalva maneuver remained virtually unchanged.
  
  
  CONCLUSIONS
  The TVT does not seem to contract or shorten over a median observation period of 1.6 years. On the contrary, it appears to slowly migrate caudally.
authors.affiliation: Royal Hospital for Women and the University of New South Wales, Sydney, Australia. hpdietz@bigpond.com
authors.forename: Hans Peter
authors.initials: HP
authors.lastname: Dietz
authors.forename: Lone
authors.initials: L
authors.lastname: Mouritsen
authors.forename: Gaye
authors.initials: G
authors.lastname: Ellis
authors.forename: Peter Donald
authors.initials: PD
authors.lastname: Wilson
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005548:Foreign-Body Migration / Q000503:physiopathology; D006801:Humans; D008137:Longitudinal Studies; D008875:Middle Aged; D019736:Prostheses and Implants / Q000009:adverse effects; D011475:Prosthesis Failure; D013997:Time Factors; D014463:Ultrasonography; D001743:Urinary Bladder / Q000000981:diagnostic imaging; D014550:Urinary Incontinence, Stress / Q000000981:diagnostic imaging / Q000601:surgery*; D013520:Urologic Surgical Procedures; D014621:Vagina / Q000000981:diagnostic imaging; D014636:Valsalva Maneuver