The effect of number of throws on knot security with nonidentical sliding knots.
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.
Ivy
Joseph J
JJ
Division of Gynecologic Pelvic Surgery, Department of Obstetrics and Gynecology, Louisiana State University Health Sciences Center, Shreveport, LA, USA.
Unger
James B
JB
Hurt
Jason
J
Mukherjee
Debi
D
D005260:Female; D013509:Gynecologic Surgical Procedures / Q000379:methods*; D006801:Humans; D016687:Polydioxanone; D011098:Polyglactin 910; D013536:Suture Techniques; D013537:Sutures; D013718:Tensile Strength
D016687:Polydioxanone; D011098:Polyglactin 910