This Video demonstrate Dundee Jamming Knot Continuous Suturing and Aberdeen Termination. Continuous suturing is required in laparoscopic surgery to close delicate long suture line. It can be started with Dundee Jamming Knot. The final knot of a continuous suture can be accomplished in the traditional way of open surgery as Aberdeen Termination. Dundee Jamming Knot and Aberdeen Termination are two surgical knots in the same direction and a final one in the opposite direction, tying the final loop of the continuous suture with the end of the suture with the needle, or it is possible to recur to the “Aberdeen knot,”8 in which a final knot is accomplished by creating a new loop in the already existing one. The final loop of the suture is kept loosely; then, grasping the needle with the assistant needle holder, the needle holder is inserted into the loop, and the suture thread is grasped at its middle and retracted without the grasper dropping the needle. This process generates a new loop in the already existing one, which is tied guiding the needle holder through the loop and applying countertraction between the needle holder and the assistant needle holder. This procedure is repeated twice. Finally, the end of the suture is guided with the needle through the last generated loop, and, using retraction, the final tightening of the knot is performed. If, at the end of the suture, the thread were too short to accomplish one of the described procedures.

In minimally invasive surgery, particularly laparoscopic procedures, the ability to secure sutures reliably is a fundamental skill that differentiates skilled surgeons. Among the key techniques taught to trainees are the Dundee jamming knot and the Aberdeen termination — two knotting strategies that ensure secure continuous suturing within the restrictive environment of laparoscopic surgery. 

Why Knot-Tying Matters in Laparoscopy

Unlike open surgery where hands have direct access to tissue, laparoscopic surgery requires surgeons to manipulate long instruments through small ports. This limitation increases the difficulty of suturing and necessitates specialized knot techniques that are secure, reproducible, and adapted for the endoscopic environment. 

Surgeons must learn to tie and secure knots either inside the body (intracorporeal) or outside and then introduce them into the abdomen (extracorporeal) — demanding high manual dexterity and precision. 

The Dundee Jamming Knot

The Dundee jamming knot is a continuous suturing knot widely used in laparoscopic surgery.

It is typically prepared outside the body (extracorporeal) and then introduced through a trocar or reducer. 

Once inside, the needle takes the tissue bite, and the suture strand is passed through the loop. Pulling the suture tight causes the knot to “jam” — locking itself securely in place. 

This knot is particularly suited for continuous suturing, where multiple passes of the suture are needed to close a longer defect. 

Surgeons use this technique for closure of internal tissue layers, such as peritoneal edges or serosal defects, where a secure and smooth continuous line is essential. 

Aberdeen Termination: Finishing the Suture

Once a continuous suturing line is complete, the suture must be terminated securely. This is where the Aberdeen termination comes into play.

Instead of traditional knot sequences, the Aberdeen termination creates a series of loops and half-hitches around the existing suture line that culminate in a secure final knot. 
World Laparoscopy Hospital

The technique works well in laparoscopic settings because it avoids bulky knots, reducing foreign material and minimizing the risk of slippage. 

The tight, secure finish ensures the entire suture line stays intact — a critical factor in successful wound closure. 
PMC

Dr. R. K. Mishra’s Demonstration

Prof. Dr. R. K. Mishra, a noted laparoscopic surgeon and educator at the World Laparoscopy Hospital, has been instrumental in teaching these advanced techniques to surgeons and gynecologists. 

His demonstrations typically include:

Step-by-step instruction on tying the Dundee jamming knot and completing the continuous suture line. 

Real-time instrument handling, often using simulation or recorded surgical cases, so learners can observe proper technique under realistic conditions. 

Guidance on transitioning from the jamming knot into the Aberdeen termination to finalize the suture securely. 

Dr. Mishra’s teaching emphasizes hands-on learning, enabling surgeons to master these suturing techniques and apply them effectively during minimally invasive procedures. 

His instruction helps trainees transition from basic laparoscopic skills to advanced intracorporeal suturing, a milestone in surgical proficiency. 

Conclusion

The Dundee jamming knot and Aberdeen termination are vital components of laparoscopic suturing skillsets. Through demonstrations by experienced educators like Dr. R. K. Mishra, surgeons gain the competency and confidence essential for safe, effective minimally invasive surgery.