Related Experiment Video
Updated: Mar 24, 2026

Application of Straight-needle, Three-tailed, Knot-free, Peritoneal Sutures in Laparoscopic Transabdominal Preperitoneal Hernia Repair
Published on: November 12, 2021
TOT 8/4: A Way to Standardize the Surgical Procedure of a Transobturator Tape
Sebastian Ludwig1, Martin Stumm1, Peter Mallmann1
1Department of Obstetrics and Gynecology, Division of Urogynecology and Pelvic Floor Surgery, University of Cologne, Kerpener Strasse 34, 50931 Cologne, Germany.
Abstract:
Suburethral tapes are placed "tension-free" below the urethra. Several studies reported considerable differences of the distance between urethra and tape. These distances ranged from 1 to 10 mm amongst different patients. This either caused urethral obstruction or had no effect on urinary incontinence. Therefore, we decided to standardize the procedure by placing a Hegar dilator of 8-millimeter diameter in the urethra and another Hegar dilator of 4-millimeter diameter between the urethra and the tape during transobturator tape placement. Using that simple technique, which we named "TOT 8/4," we observed that 83% of the tapes were placed in the desired distance between 3 and 5 millimeters below the urethra.

