Introduction: Laparoscopic intracorporeal knot tying in minimally invasive surgery is an advanced skill. Mastering this skill is a difficult process with a long learning curve. Intracorporeal suturing is essential to advanced laparoscopy and is a rate-limiting step in many procedures. Many different instruments and methods have been described for laparoscopic suturing and knot tying. We have developed a new technique for laparoscopic knot tying.
Technique: The long end of the suture is held with a left-hand instrument, and the instrument is rotated for 360 degrees in a clockwise direction to make a forward-direction loop. The end of the loop is grasped with the right-hand instrument, and the other end of the suture is grasped with the left-hand instrument. The suture end, held by the left hand, is pulled though the loop and tied, thus making a half-knot of a square knot. The second half-knot is made by using the right-hand instrument with the same technique.
Discussion: Laparoscopic suturing and knotting is difficult to perform, especially when the angle between the working instruments is narrow and working space is limited. In all these situations, knot tying using this technique makes knotting more simple and easy to perform, especially for those who have limited experience in intracorporeal suturing and knot tying. No special instrument is required to perform knot tying with this technique.
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