Interrupted laparoscopic suture secured with the needle-through-the-sliding-loop knot.

Area of Science:

• Surgical Innovation
• Minimally Invasive Surgery
• Surgical Knot Tying Techniques

Background:

• Laparoscopic surgery requires specialized techniques for secure knot tying within the abdominal cavity.
• Existing methods can be cumbersome and may compromise knot security or tissue tension.

Purpose of the Study:

• To introduce and evaluate a novel needle holder designed for external laparoscopic knot tying.
• To assess the efficacy and security of knots created using this new device in clinical settings.

Main Methods:

• A specialized needle holder with a step and knot-forming stand was designed for external suture manipulation.
• The technique involves creating sliding loops on the needle holder, passing the needle through them, and forming knots.
• Procedures were initially practiced on a laparoscopy training simulator before clinical application in patients undergoing laparoscopic myomectomy or hysterectomy.

Main Results:

• Two distinct knot types were created: needle-through-the-noose and rolling hitch loops.
• The needle-through-the-noose knot provided tension but required additional half-hitches for security.
• The rolling hitch knot was secure in basic use but needed an extra half-hitch for slippery sutures or high-tension applications.
• The technique was successfully performed over 20 times in 11 patients.

Conclusions:

• The designed needle holder facilitates effective external laparoscopic knot tying.
• The created knots offer varying degrees of security, adaptable to different surgical needs.
• This innovation shows promise for improving efficiency and security in laparoscopic procedures.