Learn the step-by-step technique of the Laparoscopic Dundee Jamming Knot in this detailed video. Perfect for surgeons, trainees, and medical professionals looking to master laparoscopic knot-tying skills. Watch this video to enhance your minimally invasive surgery techniques and improve surgical precision.

Acquiring the skills of laparoscopic suturing and knotting techniques can be considered a prerequisite to learn advanced laparoscopic procedures for laparoscopic surgeon and gynecologist. Despite the concept that developing such suturing skills should be reserved for the younger generation of laparoscopic surgeons due to the high level of difficulty in manual laparoscopic skills involved. Dundee Jamming knot is very good starter knot which is prepared outside the abdomen and then dropped inside the abdomen through one of the port to tie intracorporeal continuous suturing.

Laparoscopic surgery demands advanced technical skills, especially in intracorporeal suturing and knot tying. Among the various knot-tying methods developed to ensure security and efficiency, the Laparoscopic Dundee Jamming Knot stands out as a simple, reliable, and reproducible technique. It is widely used in minimally invasive surgery for tissue approximation, hemostasis, and mesh fixation.

What is the Dundee Jamming Knot?

The Dundee Jamming Knot is an intracorporeal laparoscopic knot that achieves secure fixation by a “jamming” mechanism. Once tightened, the knot locks firmly, reducing the risk of slippage. It was designed to overcome common challenges in laparoscopic knot tying, such as limited instrument movement and loss of tension.

Principle of the Knot

The effectiveness of the Dundee Jamming Knot lies in:

• Controlled loop formation

• Sequential throws under constant tension

• A final jamming action that locks the knot securely

This design ensures strong knot security even when working in deep or restricted operative fields.

Step-by-Step Technique (Overview)

1. Needle Positioning: After passing the needle through the tissue, maintain adequate tension on the suture.

2. Loop Formation: Create a loop by wrapping the working end of the suture around the needle holder.

3. First Throw: Grasp the tail end and slide the loop down while maintaining tension.

4. Second and Third Throws: Repeat the maneuver in alternating directions to prevent knot instability.

5. Jamming Action: Apply steady traction to lock the knot firmly against the tissue.

With practice, the knot can be performed smoothly and quickly.

Advantages of the Dundee Jamming Knot

• High Knot Security: Minimal risk of loosening or slipping

• Easy to Learn: Suitable for beginners in laparoscopic suturing

• Time-Efficient: Faster than many traditional intracorporeal knots

• Versatile Use: Effective in a wide range of laparoscopic procedures

Clinical Applications

The Laparoscopic Dundee Jamming Knot is commonly used in:

• Hernia repair (mesh fixation)

• Gastrointestinal anastomosis

• Gynecological laparoscopic procedures

• Urological laparoscopic surgeries

• Control of bleeding points

Tips for Mastery

• Maintain continuous tension throughout knot tying

• Use appropriate suture material with good handling properties

• Practice in a dry lab or box trainer to develop muscle memory

• Ensure proper camera alignment for clear visualization

Conclusion

The Laparoscopic Dundee Jamming Knot is a valuable intracorporeal knot-tying technique that combines simplicity with excellent knot security. Its ease of learning and reliable performance make it an essential skill for every laparoscopic surgeon. Regular practice and proper technique can significantly enhance suturing efficiency and surgical outcomes in minimally invasive surgery.