title: The effect of number of throws on knot security with nonidentical sliding knots.
abstract: OBJECTIVE
  The study was undertaken to test the integrity of nonidentical sliding knots made with 3 throws compared with those made with 6 throws with monofilament and braided absorbable suture.
  
  
  METHODS
  The 3 throw nonidentical sliding knot was compared with the 6 throw nonidentical sliding knot in 4 different suture groups. The groups were 0-0 polydioxanone, 2-0 polydioxanone, 0-0 polyglactin 910, and 2-0 polyglactin 910. Knots were tested to failure with a tensiometer. The proportion of 3 throw knots becoming untied was compared with the 6 throw knot within each group. Ultimate load required to break tied knots within each suture group was also evaluated.
  
  
  RESULTS
  The 3 throw knots had very high rates of knot failure and untied significantly more often than the 6 throw knots.
  
  
  CONCLUSIONS
  The 6 throw nonidentical sliding knot demonstrates superior knot integrity compared with the 3 throw knot with both monofilament and braided absorbable suture.
authors.affiliation: Division of Gynecologic Pelvic Surgery, Department of Obstetrics and Gynecology, Louisiana State University Health Sciences Center, Shreveport, LA, USA.
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Ivy
authors.forename: James B
authors.initials: JB
authors.lastname: Unger
authors.forename: Jason
authors.initials: J
authors.lastname: Hurt
authors.forename: Debi
authors.initials: D
authors.lastname: Mukherjee
mesh_terms: D005260:Female; D013509:Gynecologic Surgical Procedures / Q000379:methods*; D006801:Humans; D016687:Polydioxanone; D011098:Polyglactin 910; D013536:Suture Techniques; D013537:Sutures; D013718:Tensile Strength
chemical_list: D016687:Polydioxanone; D011098:Polyglactin 910